It would be better if you start doing some research on your own instead of relying on others to do the work for you. But I can help you with the 2019 cut-offs for CS branch in the top 5 IITs.
- IIT Madras : under 188
- IIT Delhi : under 93
- IIT Bombay : under 63
- IIT Kanpur : under 216
- IIT Kharagpur : under 283