M.Tech

Please check about the course on www.cuchd.in

Kindly visit the link mentioned below:
http://www.bits-pilani.ac.in/university/wilp/wilpoverview

You should go for B.Tech (mechanical) and, thereafter go for M.Tech (automobiles).
It will give you great learning as well as better earning opportunities.
B.Tech in mechanical will serve you as a foundation for the pillar of your career in automobile engineering.

You should opt for B.Tech in IT which will provide a handful experience in that field.

Yes, M.Tech is offered by Vaishnav University, but it is not approved by AICTE. Best of luck.

No, to qualify for an M.Tech biotech you need to have either a B. Tech degree or an M.SC. degree. A B.Sc. degree alone will not fetch you an M.Tech in biotech.

Sorry, as you have completed Diploma in Civil, you cannot join any other branches. You have to join Civil Branch only. And we don't have dual degree for engineering.

Appear for GATE entrance exam. Moreover, there is JAM too. Go for both. For more details about admission process check any of the IITs & NITs website. As both has certain extra interview type things too.

Hello Aditi,
The eligibility for M.Tech in aerospace is BE in related subject. Meaning perhaps mechanical, electrical, avionics, etc. Some institutions demand minimum marks in class 12th also but it differs.
Best wishes.