If you would have specified the name of the university under which you want to pursue B.Sc in Agriculture then it would have been easier to answer. But to give you a rough estimate , I am providing you some details.

Fees differs from state to state and university to university. If you have a local university where you can study without having a hostel will be lesser than that places where you will need to have hostels.

For example in BHU , Bsc(H) in agriculture costs around Rs.25000 for 4 years course. So its better if you could decide which university you want to study in and then find out the fees structure.

Hope this answer helps you. Have a great day!