Dear Aspirant, 

With the given rank and category it is hard to get free seat in top colleges .However there will be few chances to secure seat in colleges if you participate in counselling. 

Here is the link for predictor tool which will help you find eligible colleges :

https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.careers360.com/college-predictor&ved=2ahUKEwji6rzH8tnjAhXJPI8KHV4IAqcQFjAAegQIBxAD&usg=AOvVaw2AOFtKT1Kl7aX4aICHr3xY

Hope this helps. 

Good luck.