M.Tech

Hello Surajeet,
The following are the top colleges for M. E/M. tech automobile engineering in India :
1) Madras Institute of Technology Campus, Anna University
2) Delhi Technological university
3) VIT University Vellore
4) Manipal Institute of Technology, Manipal
5) PSG college of technology, Coimbatore
6) IIT Madras (specialization in automotive engineering)
7) VJTI, Mumbai
8) Jadavpur University, Kolkata
9) SASTRA University, Thanjavur
10) JNTU, Hyderabad
11) SRM University, Chennai
12) Sathyabama University, Chennai
13) LPU, Punjab

Yes IITR is one of the best colleges for computer science education especially masters. M.Tech from IITR will fetch you a better placement in the future.

MBA is more demanded one. Nowadays many of the major MNC's look for B.Tech + MBA graduate rather than M.Tech. They want students with technical and managerial skills.

You can join the institute by taking a competitive exam called GATE which on clearing will allow you to study in the IITs, according to your rank.

Hello Sunny,
After having done B.Tech in CASE, why you want to change branch? Universities abroad are quite liberal in giving choice of subjects. But to do MS in Aeronautical engineering seems I little far fetched. But you may make an attempt.

Hello Manash,
For doing ME or M.Tech, you need to have done graduation in engineering. You have not done this, hence I am afraid you are not eligible for admission to M.Tech in IIT.