With a CRL rank of 256,251, here are some options for B.Tech in Computer Science:

Government Colleges

- NITs: NIT Rourkela, NIT Calicut, or NITs with higher closing ranks might be possible.

- Other Government Colleges: MNNIT Allahabad or similar colleges.

Private Colleges

- IIITs: IIIT Hyderabad or IIIT Delhi.

- Top Private Universities: SRM University Chennai, Amity University Noida, or VIT Vellore.

IPU Options

- GGSIPU-affiliated colleges*: Possible, but depends on CUET scores and category reservations.

Consider factors like fees, placements, and branch selection. Research and shortlist colleges based on your priorities.