Hi dear candidate,

Can you please specify about which particular college you need to know the cut off for computer science so, that we can help you further.

Generally, top institutions like NITs and IITs have a tough cut off like under 5,000 in JEE. The college fees should be around INR 5,00,000 (complete course) in government college and around INR 9,00,000 in private college.

Yes, you can change you branch of BTech in 2nd year but you need to have no backlogs and a high CGPA after all, it all depends on you college rules and policy as well.

BEST REGARDS