Engineering Entrance Exam

The notes are available of Made Easy for different branches in market. You can ask for the subscription of books by Career Launcher. Apart from these, you can read your subject reference books.
Quantitative:
1. Arun Sharma, Publisher: Tata McGraw Hill,
2. Pearson Guide to Quantitative Aptitude and Data Interpretation for the CAT by Nishit Sinha.
3. Quantitative Aptitude Common Admission Test by Sarvesh K Verma.
4. Data Interpretation and verbal: Arun Sharma - Tata McGraw Hill.
5. Pearson Guide by Nishit K. Sinha.

JEE Mains is based on your basic concepts. If you have your concepts clear and rigid, then half of the work is done. You need to prepare from NCERT books and you have to practice a lot of questions, so that you can learn the methods for solving problems and also you can manage your time for solving them. You can collect the previous year question paper with solutions as they will help you to analyse.
Best of luck.

JEE Mains provides you a wide scope for admission not only in IITs or NITs, but some of the top private institutions and some of the colleges among the state takes admission through JEE Mains. So, it will be better if you appear for JEE Mains. If you score well, then you may get the chance to appear for JEE Advanced and if you can't crack advance, then you may take admission in NITs.
Best of luck.

To get admission in NIT, you should score a minimum of 200 marks in JEE Mains. To get admission in NIT, Trichy, you should score more than 230 marks.

If you are clear with your basics and your concepts are rigid, then half of the thing is done. Now coming to increasing your efficiency, you can practice more previous year question papers and questions from a particular book.
Best of luck.

You can get admission in the top management colleges after qualifying JEE Advanced exam.

When you are in the pre-final year or final year of graduation, you can start preparing for GATE. 6-7 months of dedicated preparation is enough to get a good score in GATE exam.

Below mentioned is the order of preference:
1. Computer science and engineering.
2. Information technology.
3. Electronics and communication engineering.
4. Electrical engineering.
5. Mechanical engineering.
6. Civil engineering.

You can collect all the previous year's questions. You should clear your concepts as well as rigid. You should practice as much as you can. Knowing the theory and formulae, won't help you.
Best of luck.