Automobile Engineering

Hello Faisal,
You seem to have done excellently in your Diploma. Now for lateral entry, every state has a matrix that tells you what branches of engineering you are eligible based on your branch in diploma. Else taking Diploma as the equivalent of 12th you can seek admission in any branch in the first year.

Hello Rohit,
It's really nice to see your enthusiasm. Yes, the field of Aerospace engineering is really exciting but the actual research takes place in not so exciting places. Then unfortunately in India not many opportunities for research. So, I will suggest automobile to you.

Automobile Engineering colleges:
Name Place Placement%
Sathyabama University-Chennai-100 percent
Anna University-Chennai-100 percent
Hindustan Institute of Engineering Technology-Chennai-100 percent
IIT-Delhi-100%

IIT-Madras, Chennai
IIT-Kharagpur, Kharagpur
IIT (Indian Institute of Technology)-Kanpur, Kanpur
IIT (Indian Institute of Technology)-Roorkee, Roorkee
Delhi College of Engineering (DCE)-Delhi, New Delhi
Birla Institute of Technology and Science (BITS-Pilani), Pilani
ISM University-Dhanbad, Dhanbad
IT-BHU, Varanasi

Automobile engineering and mechanical engineering will help you to make your career in the automotive field.

You are advised to do B.Tech automobile engineering or mechanical engineering followed by M.Tech automobile design from a top German University to fulfill your dream of becoming an automobile design engineer. You may refer to list of top automobile engineering colleges in India: https://www.shiksha.com/b-tech/ranking/top-automobile-engineering-colleges-in-india/51-2-0-0-0

In mechanical, it covers all mechanical concepts like thermal, fluid dynamics, heat transfer, dynamics etc. But, if you go for automobile, it covers all automobile related things. So, in my point you can go for automobile engineering.