Ravenshaw University

Admission into PG History requires second-class honours with minimum 50% marks in that Honours subject. However, those who don't have Honours in that subject but have passed graduation with 50% or more in aggregate in any subject at graduation level from a UGC/AICTE recognised institution, are also eligible to apply. Therefore, you are not eligible for PG History course at Ravenshaw University

Hi
Your score is very low, you may not get a chance to get admission.
https://www.shiksha.com/university/ravenshaw-university-Cuttack-52514
https://www.shiksha.com/university/ravenshaw-university-Cuttack-52514/admission.

You must have the thorough knowledge of that graduation and last year's.

Yes you can, The eligibility criteria for admission in Ravenshaw University for B.Sc. in Computer Science is a minimum of 50% marks in 10+2 examination.