Mechanical Engineering

I would suggest you pursue Bachelor's degree in mechanical from India. Institutions like IITs, IISC, NITs and many others have enormous power to provide you with world class education that too at an affordable price.
All the best.

Hi Anup,
You need to apply for Combined Defense Services Exam (CDS) to join air force after completing BE mechanical.
You can check the official website for more details:
http://www.upsc.gov.in/examinations/Combined Defence Services Examination(I), 2017

CET quota- Rs. 60,000 to Rs. 70,000
Comedk- Rs 1,50,000- Rs. 1,70,000
Management quota fees differ depending on seat availability and PU percentage and other factors.

The average placement for mechanical is something around Rs 8-9 lakhs per annum. But I have to say that this is for core companies. A large number of the mechanical get placed in non-tech companies or opt for govt. jobs . Please upvote the answer to allow me to continue answering.

You will be getting scholarship in engineering for every branch. Getting scholarship is independent of the branch and the only thing you must have is that you should be a merit student.
All the best.

GRE is not required if not mentioned by the university. It is mainly required in US. If you have good academic performance, you need not take GRE even if you are applying to a top university in Australia.

Hi Subhankar,
KIIT - Bhubaneshwar has an excellent placement record for mechanical engineering.