M.Tech

https://www.shiksha.com/college/national-institute-of-technology-Patna-23147
Here is the link, where you will get fees structure of NIT-Patna. Please go to the link to know about it. Good luck.

Dear Hitesh,
The infrastructure and studies are good, but the placement is poor here.
Placements: The placements are low. Sometimes, none got placed, and there is a recession in the placement in Jamia Millia Islamia. Only a few companies come there and recruit a few students with not attractive packages. The seniors are didn't get the job as some are wandering here and there. A few got placed, who soon left the job due to the workload and salary.

Yes, after pursuing your B.Tech in Aeronautical Engineering you could do your M.Tech in Aerospace Engineering.

Yes, you can get good government college at this rank for M.Tech mechanical.

List of universities offering M.Tech Biotechnology through distance are as below:
Maharishi University of Management & Technology, Delhi
Indian Institute Of Management, Calcutta
Nalonda Open University
NIILM University, New Delhi
Maharshi Dayanand University, Rohtak
Management Development and technical University, Gurgaon
Amity University, New Delhi
Bangalore University, Banglore
Sikkim Manipal University, Manipal
Amity University, Noida
Shobhit University, Delhi-NCR
J.P University, Himachal Pradesh
Lovely Professional University, Punjab
Thapar University, Punjab
Singhad University, Maharashtra

You need to score above 200 to confirm a seat in this campus.

Yes, there are good chances with above 90%.

Yes, there is a good chance as they require more than 90% in HSC.

It is around 90 percent for Vellore campus.

It's pretty decent. However, the best placements are for CSE and VLSI.