If you take admission in any Indian Institute of Technology (IIT), or any National Institute of Technology (NIT), then there is a scholarship knows as Merit-cum-Means scholarship, which you can avail freely. Moreover, you will get reservation in these colleges being a SC student and even after that you'll be exempted from tuition fees, which is 1 lakh per semester.

So, in all, you can get a lot of scholarships of you join an IIT or an NIT. All the best!