Hello Shravya!

Direct admission to B.Sc. Agriculture is provided by some institutes in India based on merit. As you have not mentioned the name of any institute of your interest, I'll tell you the expenses with reference to Lovely Professional University, Jalandhar. It is one of the largest private and ICAR recognized universities in India.
The programme fee per semester is INR 98,000 but scholarships are provided upto 40% by the institute on the basis of your Class 12th aggregate marks or LPUNEST score.
Fee for additional services/facilities is exclusive.

For information about any other institute, kindly comment below its name.

I hope this answer will help you.