scholarship

Yes, there are scholarships available. Contact your college administration for details on the same.

Yes, there are scholarship programs on offer for international students. But each scholarship has their own eligibility criteria. So depending on where you study and other factors scholarship may vary.

There are aids for OBC students directly provided by Central and other state governments. You may have to apply for the same at your college.

Scholarships vary from college to college and based on numerous other factors. It's hard to say without any information. Almost every college offers some sort of scholarships, either through central grant, state grant, private donations, NGOs etc. But, the eligibility is only known by the college. So contact them for detailed information.

Which institution are you looking for?

Yes, there are various scholarships on offer depending on the institution you study and course. But contact your college administration for all the affiliated scholarships on offer.

There's no one particular figure. Try to score your best and hope for the best.

https://www.jnu.ac.in/Admission/International
Yes, you can get admission in JNU, but i can't confirm the scholarship. Please contact the university directly for info.

Any student, who has more that 70% aggregate marks, would get a scholarship of 50% concession on tuition fee of 1st year. For more details, you can also check out their website :
https://www.iihmrdelhi.edu.in/academics/scholarships/details