Hiiii, 

B. Sc. Agriculture is a 4 year professional undergraduate degree awarded by Indian universities preferably with Science stream. The basic eligibility criterion for pursuing this course is that student must be passed 12 standard with 50% marks

The best universities for this are

•  University of Agricultural Sciences, Bangalore 
• Orrissa university of agriculture and technology 
• Indira Gandhi krishi vishwavidyalaya
• Shivaji university 

Admission to this course is mostly through exam based KEAM.