Hi Ganesh

For all IIT tutiotu fee is same that is 1Lakh per semester other fees including hostel rend and mess advaAdv will count to approx 20k per semester for all the IITs.

SC ST students are given full waiver in the tuition fee.

OBC Gen candidate whose family income is less than 1 lakh per annum is exempted from tuition fee.

OBC Gen students whose family income is brtbetw 1 to 4.5 LPA are gicgi 2/3 waiver in the tuition fee.

It depends upon sevreral factors,For a different IITs fees are different both academic as well as mess fees.To knoe more about each IIT academic fees and mess fees foloow this link :https://engineering.careers360.com/articles/iits-btech-fee-structure

Hope this helps you.