IIT

You should go for JEE Advanced examination to get admission in an IIT or take GATE examination after you complete your graduation.

I didn't understand your question. Please elaborate.

For taking admission in IIT, you will need a rank below 1500 and marks at least 250+ in JEE advance to get easy admission in aeronautical engineering. I hope this will help you.
Good luck.

My answer is based towards placements and faculty.
1. IIT Bombay / IISC Bangalore
2. IIT Delhi
3. IIT Kharagpur & IIT Madras
4. BITS PILANI & IIT Kanpur
5. IIIT Hyderabad, NIT Trichy, Warangal, Surathkal
6. IIT Roorkee, IIT Guwahati, IIIT Delhi & IIIT Bangalore
7. NIT Calicut & Allahabad
I hope this will help you.
All the Best.

See, it depends on the child. There is one child who studies more and devotes 5-6 hours daily and there is one child who only studies 1-2 hours daily still secure more marks than the first one. So, it is up to you only that how much you grab and what is your sitting capacity.

As you are a SC category student, you will need to score at least 250+ to get admission in IIT.
All the best.

As the exam and the college curriculum is totally in English, you should first work on your English and improve it a bit and after then, try to study English notes, it will help a lot in improving your English.

See, if the branch is not a barrier, you should definitely go for IIT or IIIT, as it stands out on its own and you'll get a great exposure there. But if you are sure with your branch that's EC, then NIT-Silchar is a great college.