7 Best ECE certificate training courses to get an opportunities in core companies

ece courses
So many ECE studying or completed engineering graduated people has confusion in mind that what type of the courses has to be taken to get a job in core sectors companies?

I hope, From this article your confusion will be clear about technical short term diploma courses which will useful to place in some core companies.

Learn these courses practically instead of theoretical for that you should choose an institute which gives you more practical knowledge.

Infographic credit to licreativetechnologies:
If you want more tips about web design companies in india

1. Digital and Analog VLSI Design :

In the present technology revolution, in every electronic product like mobiles, computers, tablets, so on.. contains a chip which are based on VLSI technology. Let us take a big company INTEL which mainly focuses on designing microprocessor chips which is used in computers with different clock speeds. To design those type of chips for consumer electronics, medical electronics, communication, aerospace, computers etc.  they required highly skilled individuals is needed to meet this demand. So, this is one of the highly demanded courses which will use to get into the VLSI/ASIC design companies.

2. Embedded Systems :

In our daily life, we use so many mechanical and electronic devices to make our work faster and easier like washing machine, lifts, escalator, pagers, micro ovens,etc.. so to do those works we need some processors which works for only a particular applications i.e like washing machine which only used to wash the clothes. To develop those type of applications we need to embedded some logical programs in processors which is written in the basic embedded program which is similar to C language. so to develop those type of applications most of the IT companies need engineers who have sound knowledge in hardware and software design.

Nowadays the companies are more concentrate on the Internet of Things(IoT), It is one of the best course to get into a core company, for this you have to learn Aurdino.

3. Computer Networking and System Security

We all know how the internet is useful for us to know the information from all around the world. let us take “Facebook” a social networking sites which we are using daily and spending lot of time to connect with the other peoples but, have you ever think what happened when you open any website URL like www.facebook.com in your chrome or Mozilla Firefox or internet explorer(IE) browsers, as we are an engineers we have to think creatively “I believe engineers are only the creator in every industry”.Did you think what happened on the backside of the browser?Think!!. Back end there is a lot of protocols will run till the page opens completely, read any computer network book to know what is happening in the internet world.
I am giving a small example component which is useful in networking i.e router which is used to route the packets from source node to destination node, here I am not going deep discussion about router if you want to know more about it learn from Google or any textbook. Router is a physical device which consists of a processor which was designed by VLSI peoples but they just design according to our requirements and networking engineers only know how to route packets efficiently in to the network for that they implement some routing algorithms and they design the network based on requirements not only for that purpose they are used to secure the information in the network.
Cisco is one of the leading producers of routers, and so many companies need network engineers to design the network and to secure the information from threats. Networking & System Security is to address the industry needs of the security-aware network and system administrators.

4. Wireless networks/Telecom:

As we know how the telecom or wireless industries are growing fast as the usability of the wireless equipment by the user is growing.so, to meet the user standards these companies required talented peoples in these domains.

5. Digital signal processing applications: 

 It has also equal importance in the industry to embedded systems. Here this course used to develop some signal processing applications.


I don’t have much knowledge on this course, but nowadays its also becoming popular read more about this in the Hindu article

7.PCB Designing:
Nowadays it has more requirement because of increasing digital technologies, where you have different positions like PCB design engineer.

Best Railway and Defense Jobs for ECE Freshers engineers

There is a lot of career option in railway and defense for electronics and communications after completion of B.tech degree.To get higher posts jobs in Railway and defense we have to write IES,RRB,AIRCAFT,INDIAN NAVY EXAM. Every year they release notification  to recruit candidates so please check their website for more details.

Railway Jobs for B.Tech ECE

(i) Indian Railway Service of Signal Engineers.
(ii) Indian Railway Stores Service (Telecommunication/ Electronics Engineering Posts).
(iii) Section engineer
(iv) Junior Engineer

These four Posts are the higher category Jobs in railways for B.E/B.tech graduates.

To get those jobs we have to write IES and RRB exams,

For first two posts we have to write IES/ESE(indian engineering service / Engineering service examination) exam and

for third and fourth posts we have to write RRB(railway recruitment board) exam for section/junior engineers.

IES notification is given on every year but,

 RRB release notification only once in 2-3 years.

The Entry Exams and posts for ECE to join in Defence service

(i) Indian Naval Armament Service (Electronics Engineering Posts)
(ii) Assistant Executive Engineer Group 'A' (Electronics & Telecommunication Engineering Posts) in the Corps of E.M.E., Ministry of Defence.
(iii) Assistant Naval Stores Officer Grade-I (Electronics & Telecom Engineering Posts) in Indian Navy.
(v) Asst. Commandant in Indian army
(vi) TGC (Engineers) in Indian army
(vii) UES(University Entry Scheme):Final and Pre Final Year Students can apply.
(vii) CDS(combined defense service):which is used to join in any defense academy This exam is conducted by UPSC.
(viii) NDA (National Defence Academy) conducted by UPSC to join in defense service.
(ix) DRDO scientist jobs  which will mainly works on defense area,you can choose path in this area also.

For first three posts you have to write IES exam

for fourth post AFCAT is a common Entrance test for Flying Branch, Technical Branch, Ground Duty officer You need to be 60% aggregate in all your Years in graduation and

fifth post Asst. commandant we need to write written exam for the taking the 39th Short Service Commission for (Technical) course and 10th Short Service Commission (Technical) Women course.

For all these posts we need to have B.tech degree with 60% aggregate. Every year they releases notification to recruit  candidate for the above posts.

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Top 8 ece core companies in vizag which pays good salaries

As an ECE graduate, most of the engineers looking a career in core companies but due to lack of knowledge of available companies in their location they choose their career in software field, here we are trying to educate ece graduates to develop a career in ece core companies, in this blog post we are giving best ece core companies in Visakhapatnam which gave a good salaries.

1. Ahuva Electronic Technologies Pvt.Ltd

Ahuva Electronic Technologies was established in the year 2011 and works on Industrial Electronics, Medical Electronics, I.T. Solutions and Surveillance CCTV. 

2. Andhra Pradesh MedTech Zone Limited (popularly known as AMTZ)

AMTZ is an enterprise under the Government of Andhra Pradesh, a 270 Acre zone, dedicated for Medical Device Manufacturing. AMTZ envisions to put India on the global map of high-end medical equipment production and make health care products affordable and accessible not only for India but for the world at large.

3. Lotus Wireless Technologies India Private Limited

 Lotus Wireless is India's leading Technology provider for Power, Steel, Port, Mining and Transport Sector. Lotus Wireless leads in offering turnkey customized solutions for all real-world applications.

Lotus Wireless span of competencies in Embedded Electronics, Wireless Technologies, IT Development and Electrical Controls & Automation enables it to offer tailor-made solutions for challenging and varied project requirements.


ESSEN’s provides indigenous solutions to one of the Nation’s pride industry “VIZAG STEEL”, has now emerged as one of the most dependable solution providers for Indian Industry / Defence / Aerospace Sectors by way of providing services like Design & Development, Indigenization, proto-type manufacturing, bulk manufacturing of Electronics, Electro-Mechanical & EW Systems for various applications and also providing expertise Onboard services like STW, HATs & SATs, along with RRC / AMC services.

5. Essae
Essae family has more than 1500 members in its various units and operates in diversified areas ranging from Electronic Weighing System, Point of Sale (POS) System, Self-Service KIOSK, GPS Clock, Truck Scales, Barcode Systems, Machining Components/Assemblies, CNC parts and TQM training.

6. Opto Circuits
Opto Circuits (India) Ltd. is a publicly traded multinational company and is one of the world's fastest growing medtech companies. They develop, manufacture and market niche medical equipment and interventional devices. 
Opto Circuits and its subsidiaries offer opportunities for candidates in a range of career areas. Apply now to be part of a young, enterprising and multicultural organization.
For career opportunities with the Opto Circuits group, post a resume at careers@optoindia.com

7. Cybercinatics
It is a startup company offering Engineering and Technology Consulting Services in Automation, IOT, Smart Cities, Manufacturing and Business Process Outsourcing domains. We help companies and governments define new systems and processes to increase Quality of life, Productivity and Efficiency of individuals as well as the society as a whole, using new products, innovative technologies, smarter machines and connected devices. Cybercinatics is working on Smart Transportation, Parking Systems, Surveillance Systems, Wireless, GPS and other applications for Smart cities.

If you are interested  Please send your CV to pratyushasistla@cybercinatics.com

8. Vayu Group provides specialized people, processes, and software to ensure maximum value on network infrastructure and data center projects. Our team is made up of passionate engineers with extensive field experience installing, configuring, verifying, and planning multi-vendor networks.
Vayu Group understands each clients’ unique competitive landscape and collaborates with them to expand their breadth and depth of services. Our teams continually seek cost-effective and innovative solutions that allows our clients to focus on their core business.

Latest ECE technical seminar topics 2021

In engineering curriculum there will be a technical seminar subject in the final semester or 3rd years, these students have to select a technical topic on the latest field of study, here we are providing latest and best IEEE technical topics for ECE students on different fields like wireless, VLSI, ic technology and communications. I hope it will helpful for your seminar, we are giving only titles of topics, we will update full abstract and report in pdf to download later, please subscribe to receive updates.

Seminar Titles
Internet of Things(IoT)
Artificial Intelligence
5G wireless network with IoT
Adhoc Networks
Smart Traffic system
Smart Ambulance with auto traffic control
A routing algorithm for GPS location
Bump Technology
Infrared Plastic Solar Cell
Paper Battery
Easy-to-swallow wireless telemetry
Solar tree
Life detection system based on L and S-band microwaves
Fibre Bragg grating
Skinput technology
Nuclear Fuels Using Lasers
Artificial Retina Using Thin-Film Transistors
organic electronics
CAN protocol
Brain chips

Best Forrest Gump rain quotes which melt my heart

Forrest Gump is a comedy-drama film directed by Robert Zemeckis, in the year 1994, when I saw a film I love one quote on rain. so here I share all the Forrest Gump rain quotes with you.

Are you a fan of Forrest Gump movie?


Then you must like this Forrest Gump rain quote which makes the fans happy and make them follow.

My favourite film quote must be the one from Forrest Gump when he’s describing the rain melts my heart.

In addition these raining quotes we have another article describes about famous Forrest gump quotes which are used in my life.

What did Forrest Gump say when he stopped running?

I‘m pretty tired… I think I‘ll go home now.”

Forrest Gump Quotes from movie watch this video

Forrest Gump rain quotes :

The best raining quote said in Forrest Gump movie, which melts most of the fans heart.

Forrest Gump rain quotes

Forrest Gump rain quote:

“One day it started raining, and it didn’t quit for four months. We been through every kind of rain there is. Little bitty stingin’ rain… and big ol’ fat rain. Rain that flew in sideways. And sometimes rain even seemed to come straight up from underneath. Shoot, it even rained at night…”

Forrestgump quotes and forrest gump rainy quotes

“The good thing about Vietnam is there was always someplace to go. And there was always something to do. One day it started raining, and it didn’t quit for four months. We been through every kind of rain there is. Little bitty stingin’ rain, and big ol’ fat rain, rain that flew in sideways, and sometimes rain even seemed to come straight up from underneath. Shoot, it even rained at night.”

forrest gump quotes

“We been through every kind of rain there is. Little bitty stingin’ rain … and big ol’ fat rainRain that flew in sideways. And sometimes rain even seemed to come straight up from underneath.”

forrest gump shrimp quotes

Here am going to give you a full Bubba Gump shrimp quote from Forrest Gump movie

forrest gump shrimp quotes
Here am going to give you a full Bubba Gump shrimp quote from Forrest Gump movie
                                                      forrest gump shrimp quotes

Bubba Blue: Anyway, like I was sayin’, shrimp is the fruit of the sea. You can barbecue it, boil it, broil it, bake it, saute it. Dey’s uh, shrimp-kabobs, shrimp creole, shrimp gumbo. Pan fried, deep fried, stir-fried. There’s pineapple shrimp, lemon shrimp, coconut shrimp, pepper shrimp, shrimp soup, shrimp stew, shrimp salad, shrimp and potatoes, shrimp burger, shrimp sandwich. That- that’s about it.

GATE syllabus for ECE 2021 download in pdf format

gate syllabusGate is the one of the most competitive exam in India to took PG-M.tech or M.S or Phd admission in top most colleges like IIT,NIT,Top universities,Bits pilani and it also useful for PSU’S jobs… here I am giving latest GATE syllabus for ece 2021 in pdf format which we are expecting similar to gate 2020 syllabus.

The Gate exam is also used to get a job in PSU's, the gate score is very useful for your career. In addition to the below syllabus there are two more sections 1: general English  and 2. aptitude

Linear Algebra: Vector space, basis, linear dependence and independence, matrix algebra, eigen values and eigen vectors, rank, solution of linear equations – existence and uniqueness.

Calculus: Mean value theorems, theorems of integral calculus, evaluation of definite and improper integrals, partial derivatives, maxima and minima, multiple integrals, line, surface and volume integrals, Taylor series.

Differential Equations: First order equations (linear and nonlinear), higher order linear differential equations, Cauchy's and Euler's equations, methods of solution using variation of parameters, complementary function and particular integral, partial differential equations, variable separable method, initial and boundary value problems.

Vector Analysis: Vectors in plane and space, vector operations, gradient, divergence and curl, Gauss's, Green's and Stoke's theorems.

Complex Analysis: Analytic functions, Cauchy's integral theorem, Cauchy's integral formula; Taylor's and Laurent's series, residue theorem.

Numerical Methods: Solution of nonlinear equations, single and multi-step methods for differential equations, convergence criteria.

Probability and Statistics: Mean, median, mode and standard deviation; combinatorial probability, probability distribution functions - binomial, Poisson, exponential and normal; Joint and conditional probability; Correlation and regression analysis.
Networks, Signals and Systems :Network solution methods: nodal and mesh analysis; Network theorems: superposition, Thevenin and Norton’s, maximum power transfer; Wye‐Delta transformation; Steady state sinusoidal analysis using phasors; Time domain analysis of simple linear circuits; Solution of network equations using Laplace transform; Frequency domain analysis of RLC circuits; Linear 2‐port network parameters: driving point and transfer functions; State equations for networks. Continuous-time signals: Fourier series and Fourier transform representations, sampling theorem and applications;
Discrete-time signals: discrete-time Fourier transform (DTFT), DFT, FFT, Z-transform, interpolation of discrete-time signals; LTI systems: definition and properties, causality, stability, impulse response, convolution, poles and zeros, parallel and cascade structure, frequency response, group delay, phase delay, digital filter design techniques.

Electronic Devices : Energy bands in intrinsic and extrinsic silicon; Carrier transport: diffusion current, drift current, mobility and resistivity; Generation and recombination of carriers; Poisson and continuity equations; P-N junction, Zener diode, BJT, MOS capacitor, MOSFET, LED, photo diode and solar cell; Integrated circuit fabrication process: oxidation, diffusion, ion implantation, photolithography and twin-tub CMOS process.

Analog Circuits: Small signal equivalent circuits of diodes, BJTs and MOSFETs; Simple diode circuits: clipping, clamping and rectifiers; Single-stage BJT and MOSFET amplifiers: biasing, bias stability, mid-frequency small signal analysis and frequency response; BJT and MOSFET amplifiers: multi-stage, differential, feedback, power and operational; Simple op-amp circuits; Active filters; Sinusoidal oscillators: criterion for oscillation, single-transistor and opamp configurations; Function generators, wave-shaping circuits and 555 timers; Voltage reference circuits; Power supplies: ripple removal and regulation.

Digital circuits: Number systems; Combinatorial circuits: Boolean algebra, minimization of functions using Boolean identities and Karnaugh map, logic gates and their static CMOS implementations, arithmetic circuits, code converters, multiplexers, decoders and PLAs; Sequential circuits: latches and flip‐flops, counters, shift‐registers and finite state machines; Data converters: sample and hold circuits, ADCs and DACs; Semiconductor memories: ROM, SRAM, DRAM; 8-bit microprocessor (8085): architecture, programming, memory and I/O interfacing.

Control Systems: Basic control system components; Feedback principle; Transfer function; Block diagram representation; Signal flow graph; Transient and steady-state analysis of LTI systems; Frequency response; Routh-Hurwitz and Nyquist stability criteria; Bode and root-locus plots; Lag, lead and lag-lead compensation; State variable model and solution of state equation of LTI systems.

Communications: Random processes: autocorrelation and power spectral density, properties of white noise, filtering of random signals through LTI systems; Analog communications: amplitude modulation and demodulation, angle modulation and demodulation, spectra of AM and FM, superheterodyne receivers, circuits for analog communications; Information theory: entropy, mutual information and channel capacity theorem; Digital communications: PCM, DPCM, digital modulation schemes, amplitude, phase and frequency shift keying (ASK, PSK, FSK), QAM, MAP and ML decoding, matched filter receiver, calculation of bandwidth, SNR and BER for digital modulation; Fundamentals of error correction, Hamming codes; Timing and frequency synchronization, inter-symbol interference and its mitigation; Basics of TDMA, FDMA and CDMA.

Electromagnetics: Electrostatics; Maxwell’s equations: differential and integral forms and their interpretation, boundary conditions, wave equation, Poynting vector; Plane waves and properties: reflection and refraction, polarization, phase and group velocity, propagation through various media, skin depth; Transmission lines: equations, characteristic impedance, impedance matching, impedance transformation, S-parameters, Smith chart; Waveguides: modes, boundary conditions, cut-off frequencies, dispersion relations; Antennas: antenna types, radiation pattern, gain and directivity, return loss, antenna arrays; Basics of radar; Light propagation in optical fibers.

I hope this ece syllabus will help you in the preparation of GATE 2021 exam. For more updates please subscribe our blog.

Best 10 student motivational quotes in Hindi

Do you want to be a success in your career? then these motivation quotes for students will help you to inspire your self to be a successful person. Here we are giving all the quotes in Hindi language.

Motivation is required for every students who went to depression while preparing for government jobs or when they fail in career, Always self motivation is best thing then any other, if you need some external motivation then these quotes will help you to get success in your career.

Never Give up......

Motivational Quotes for students in Hindi:

"अपने जीवन का लक्ष्य निर्धारित करो | और सभी दूसरे विचार  को  अपने दिमाग से निकाल दो यही सफलता की पूंजी है |"
Swami Vivekananda स्वामी विवेकानंद
हमारी सबसे बढ़ी कमज़ोरी है की हम छोड़ देते हैं सफलता का एक रास्ता है की एक बार और प्रयास किया जाये | "    Thomas  Edison थॉमस एडिसन
“अगर आपके पास मुसीबतों से लड़ने की ताकद है, तो आप जीत जाओगे। आप जीतते हैं तो आप लीड कर सकते हो, लेकिन अगर आप हारते हो तो आप मार्गदर्शन जरूर कर सकते है।” – Sandeep Maheshwari 
में असफल नहीं हुआ | मैंने सीखा की यह १०००० तरीके से काम नहीं करता . Thomas  Edison थॉमस एडिसन
जब तक किसी काम को किया नहीं जाता तब तक वह असंभव लगता है   नेल्सन मंडेला Nelson Mandela
जब तुम पैदा हुए थे तो तुम रोए थे जबकि पूरी दुनिया ने जश्न मनाया था| अपना जीवन ऐसे जियो कि तुम्हारी मौत पर पूरी दुनिया रोए और तुम जश्न मनाओ
 बिना एकाग्र दिमाग के  आप महान कार्य नहीं कर सकते
जब तक आप अपनी समस्याओं एंव कठिनाइयों की वजह दूसरों को मानते है, तब तक आप अपनी समस्याओं एंव कठिनाइयों को मिटा नहीं सकते| 
अगर आज का दिन आपकी ज़िंदगी का आखिरी दिन होगा तो क्या आप वही करोगे जो आप आज करने वाले हैं | 
I hope you read these student motivational quotes in Hindi, if you want more quotes like these then check my friend website about quotes

Top ECE Government/PSU Core companies in India

Hi! are you passionate to get a job in government sector? Here is a list of ece core companies in government sector and PSU's. getting a job in government sector is my dream, but i was failed because of family problem, so i never want you to fail. here in this blog i will help you regarding your career.

Defence Research and Development Organisation
DRDO is responsible for the development of technology for use by the military.Which involves various engineering fields like aeronautics engineering,image processing, electronics engineering ,computer sciences engineering,Mechanical engineering to develop a missiles,war field equipment's.They may or may not recruit every year some times they will recruit once a 2 years.Some times they will visit on campus recruitment in IIT’s, NIT’s and some top most universities.
Website: www.drdo.gov.in
Bhabha Atomic Research Centre
BARC's is the main applications of nuclear energy, used for power generation. It manages all factors of nuclear power generation, from theoretical design of reactors, computerized modeling and simulation, risk analysis, development and testing of new reactor fuel materials, etc.It is the one of the core field work for engineers,Every year they recruit engineers through GATE score or by written exam conducted by BARC.
Website: http://barc.gov.in/careers/

Bharat Electronics Limited (BEL)

Bel is the one of the best Electronics company in India,Which is locates at banglore and it manufactures advanced electronics products for Indian armed force. it is the one of the PSU’s under the Minister of defense.Every year they recruit engineers through written exam but from 2013 onwards they are recruiting through GATE score.Some times they visit on Campus recruitment in IIT’S ,NIT’s and some top most universities.
Website: www.bel-india.com

Indian Space Research Organisation

ISRO is one amongst the six largest government space agencies in the world.ISRO is to develop space technology and its application to various national tasks.This also one who recruit electronics every year through their written test,Mostly they release a notification in between Feb-march on every year.Some times they will visit on campus recruitment in IIT’s, NIT’s and some top most universities.
Website: http://www.isro.org/scripts/job.aspx

Bharat Sanchar Nigam Limited (BSNL)

It is the one of the largest telecommunication network in India which provides both mobile and broad band communication.It is the one of the Telecom core company for ECE,But it doesn’t recruit on every year,it recruit once a 2-3 years .If they release notification means that they will recruit 1000’s of a ece engineers once in JTO post.
Website: www.bsnl.co.in
Latest: Now BSNL Recruiting Junior Telecom officers through GATE 2017 Score

Hindustan Aeronautics Limited(HAL)

HAL is one of the psu company which  is mainly involved in aerospace industry, to  manufacture and assembling aircraft, navigation and related communication equipment, as well as operating airports.
Website: http://hal-india.com/
Latest: HAL Recruiting Management Trainee through GATE 2017 score

Electronics Corporation of India Limited

ECIL is to generate a strong  indigenous capability in the field of professional grade electronics. The initial accent was on total self-reliance and ECIL was engaged in the Design, Development, Manufacture and Marketing of several products with emphasis on three technology lines viz. Computers, Control Systems and Communications. every year they are recruiting engineers through written test and interview.
Website: http://www.ecil.co.in/home.php

Steel Authority of India Limited

Sail is the one of the leading PSU, which mainly works on steel industry,in these company there are less recruitment for ece (less than 30 posts),but they recruit every year through written exam and interview,GD.
website: http://www.sail.co.in/

National Thermal Power Corporation

NTPC is the one of the leading thermal power plant and it is one of the eight PSU’S, Every year they recruit ECE engineers through GATE,but here also there is a less recruitment for ece which is less than 30.
Website: http://www.ntpccareers.net/
Latest: NTPC Recruiting Executive Trainee through GATE 2017 score

The top private ece core companies in india
Electronics Core jobs

I will update more companies later subscribe your email to receive updates
Ecatn Tags: ece career, jobs, companies

Top private sector ECE core companies which paying high salaries

ece core companies

I already posted top government core companies in my previous posts, Now I am giving some top list of private sector companies related to ECE core field for freshers and experienced candidates and their career website link with latest jobs, so you can check the opportunities by opening those links or by searching.

Top Companies List

Company Name
Area related to core
Latest Vacancies and Career links
Analog and Digital Electronics,VLSI
wireless Communications ,VLSI
Communications ,VLSI
Red Pine
Signal processing,analog,digital
Cisco Networking
Computer Networks,VLSI
Vlsi, analog and Digital electronics
Telecommunications and networking
Embedded systems
Analog and Digital Electronics,Communications
Dell India
Analog and Digital Electronics,Communications
embedded systems
LG Electronics
Analog and Digital Electronics
Wireless and networking,Telecom,VLSI
Philips Electronics
Analog and Digital Electronics
Tata Teleservices
Wipro Lighting Corporate
Schnider Electric
Electronics and Telecommunications
Havells India Limited

Important Aptitude and reasoning Topics for placements and competitive exams

aptitude preparation
Quantitative Aptitude is very important subject to test your problem solving skills. so, in every competitive written exam they asked questions from this subject, not only in written they may asked some brainstorming puzzles in interview also. It is the one of the key concept to qualify written exam almost every students who know basic mathematics can solve most of the questions in the exam but the main problem is that the time management,the recruiters does not give enough time to solve the problems so one who has more practice the model questions before exam can easily solve in the exams.
                I already discussed some good books for practicing aptitude,Reasoning and puzzles before,in that R.S.Agarwal quantitative aptitude book is sufficient for most of the exam in both government and private sectors and also it useful for campus placement preparation.Here I want to tell some of the main important topics you must practice more for placements and any competitive exams.
             Almost every topic is important, in exams they have a rights to ask anything from any topic to filter the candidates. we must practice all topics, but we must concentrate more depth in some topics what I am discussing here because those topics are somewhat confusing and time taking so, to solve those problems in exams quickly we need more practice and mostly 70% of the questions will be asked from these areas only.
 The topics we must concentrate more are 
  •  Chain rule,
  • Profit and losses,
  • Time and work,
  • ages based problems,
  • Pipes and cistern,
  • Time and distances,
  • Train problems,
  • Boats problems,
  • Simple interest 
  • Compound interest,
  • clocks,
  • mixture problems,
  • probability.
  • Coding and Decoding,
  • Blood Relations,
  • Series Completion,
  • Cubes and Dice,
  • Analogy, 
  • Ranking,
  • Arithmetical reasoning,
  • Logics.
           For placement or private company exam preparation we need to practice more questions because they will ask some question as the level of CAT exam.