Here are some of the private college you can prefer for B.Sc Agriculture.

Lovely Professional University

Chandigarh university

ECRC University
SGT University

Good Luck!

Dear Anshi 

I can give to the list of top five college

1.National Diary research institutes

2.indian agriculture research institute

3.Panjab agriculture institute 

4.University of agriculture Science

5.Tamil Nadu agriculture Universitiy

Beta of luck