Hello friend

There is no criteria for fees concession in any IIIT on the basis of your caste/category/income.you have to give complete fees.if you take admission in any IIIT college in india.

However if you take admission in nit/iit then if you are from obc and your parental income is less than 1 lakh par annum.then you get full remission of tution fees of college.

But don't loose hope if you take admission in IIIT then you can try for scholarship scheme from state government.some state government provide schoolarship for students who take admission in college through entrance exams.