Hello aspirant, 

See the eligibility criteria for admission to Bsc in agriculture is the basis in which you might get admission into an institution with the course. For being eligible in it the following is stated in the criteria-

• you must have a minimum of 50-60% (depends from institute to institute)  in your 10+2 examination with physics, chemistry and biology. 

• you must qualify and meet the requirements of the specific institute you would be applying to for admission. 

Since you had a percentile of 70% you will be eligible to apply for the same course. You might want  to get in touch with the concerned authorities of the college you like in case they have any specific additions to the eligibility criteria and the admissions.

I hope this helped. 

All the best!!