Hello aspirant 

Top two iiit in India are IIIT allahabad and IIIT hyderabad 

• If you want you get seat in IIT Hyderabad you need to secure minimum of 200 marks 
• If you want cse branch in that college you need to secure around 260 marks 
• If you want to secure a seat in IIT allahabad  you need to get minimum of 220 
• You need a rank below 3500
• Demand of these colleges raising day by day

Hope this is helpful. Good luck