Birsa Agricultural University - [BAU], Ranchi - associated department

Birsa Agricultural University (BAU) Ranchi, offers UG and PG-level courses in Agriculture, Veterinary Sciences & Animal Husbandry, and Forestry streams. Admission to BAU Ranchi is done on the basis of the Entrance Examination.

Students with science backgrounds in PCB can opt for any particular major from Agriculture, Veterinary Sciences, Animal Husbandry, and Forestry, while students with PCM backgrounds can apply only for agriculture and forestry. The total number of seats present for B.Sc (H) Agriculture is 50. The Institute does not mention any minimum class 12 % required for admission as the eligibility criteria simply state that the candidate should have completed class 12 with Physics, Chemistry, and Biology/Mathematics as compulsory subjects from a recognized board.

So, I don't think your low intermediate marks will affect your chances of admission to BAU in any way

BAU takes admission for B.Sc Agriculture through entrance Examination. 15% of the total seats for the course are filled through all India level Combined Competitive Entrance Examination conducted by I.C.A.R. While the remaining 85% of the seats are filled through Jharkhand Combined Competitive Entrance Examination Board, Ranchi. 

You need to have completed 10+2 with PCM/B to apply.