Science

There is no separate cutoff marks for individual subjects in NDA. However, you have to obtained minimum cutoff marks as prescribed by UPSC for GAT and Mathematics along with the total cutoff marks.

You can pursue. If your interest in M.Sc clinical food nutrition which is really good, then the best thing would be to appear GATE or NET, clear the exam and go for research. Else, IISC conducts a written test for admission to integrated Ph.D (Masters+Ph.D), you can get into other institutions also. There is very good scope of pursuing clinical food nutrition after BTech.
Good luck.

Hello,
The candidate must have passed 10+2 or equivalent examination by a recognized board and B.Sc Physics with 50% or above marks in aggregate. The candidate must have passed B.Sc. (General/Programme/B.Sc.
Eligibility: B.Sc in Physics with 50% aggregate.
Course Level: Post Graduate
Course Fee: INR 25,000 to 1.5 Lacs.
Thank you.

The fees for biotechnology (B.Sc) is 1, 02,200 INR per year. And, their hostel is luxury. And, they take 80,000 INR per year as hostel fees. This is without any extra charges. You have to pay extra charges, in case you want anything.

NDA exam comprises the following two papers as Mathematics and general ability test. Each paper consists the 300 and 600 maximum marks respectively. As per the cutoff criteria of UPSC 2019, Candidates needs to secured minimum 25% marks in each paper. So, you needs to score minimum 75 marks in Mathematics and 150 marks in General ability test for qualifying the exam. Here is not considered the performance in individual subjects of GAT.

Sorry to say, but unfortunately you can't do B.Ed in the Hindi Language as a subject. For taking admission, you have to first complete BA in Hindi, then apply for B.Ed and you can do that through distance mode also no issue in that it is totally accepted everywhere.