Hello Sonu, Greetings!

Let me help you.

If you just want an admission in IIITH, then according to this years cutoff, even 180 marks will do (CND branch).

If you are asking for the CSE branch which is the most sought after branch of the college , then you need around 260 marks, just to be on the safe side. This year(2019), the final cutoff for the 4yr CSE was 251 and last year(2018) it was 263 .

The marks are mentioned assuming you belong to general category.

Thank you, best of luck.