Narendra, the admission to 15% seats in B.V.Sc is done through NEET score. The remaining seats are filled through respective State Entrance examinations for B.V.Sc.. For example, Rajasthan has an entrance examination RPVT  which is a State level Entrance examination. In 2019, under All India Counselling, a score of 537 secured a seat in Government Veterinary College, Telangana. And cut offs change every year. Cut offs change every year depending on various factors such as no.of Candidates appearing for the exam, no.of Candidates qualified, top NEET score and difficulty of the exam. So you will need atleast 500-575 for a seat in any Government Veterinary College.