Which university is better for B.Sc among Presidency and Xavier's, Kolkata?

The answer is solely depending on Subject. Xavier's is famous for Mathematics, Chemistry, Microbiology, Biotechnology and Economics, whereas, Presidency is famous for Statistics, Physics, Computer Science and biology (zoology and botany).

Please refer to the link provided below for B.Sc. courses offered by different colleges in Kolkata including Presidency and Xavier's. You can use the filters to compare different features of each college: https://www.shiksha.com/science/colleges/b-sc-colleges-kolkata