hello prasanna,
Comparing both the colleges , PRIST University is best for agriculture.

The university is overall good and has all the facilities such as wifi enabled campus, library for students, labs, cafeteria, hostel nearby the campus.
The placement record was also good there. Every year 85% students get placements in different top companies. So I must suggest you to go to PRIST University.
All the very best and have a glorious future ahead.