There are many colleges which give you concession in their fees if you have successfully qualified either Joint Entrance Examination Main or one of their own entrance test. Two colleges which do this every year are as follows:

Kalinga Institute, Bhubaneshwar: Reduces your fees and gives you free admission on the basis of your KIITEE results.

SRM University: Special discounts for those with under 1000 ranks in JEE Main and free education for AIR 1 in JEE Main.

Hope I have answered your question. All the best!