Hi Shashi!

For now there isn't any seperate quota given for such. It follows the basic reservation policy given by government of India, which is General,OBC,SC,ST,PWD*.

Talking about the admission procedure in IIMs, depending in your percentile , one gets a call from the IIMs for the next round and after furthur screening one is selected. And the fees varies in diffrerent IIMs.

hope this answers your query, all the best

cheers!