Hello,

As per your query i would like to tell you, As every student interested in Veterinary Sciences Education knows that there are 15% seats on all India basis. The merit to get admission in any government recognized Veterinary College will be made according to the numbers achieved in NEET exams.
Cut off vary every year based On the difficulty level of the paper.
It's also depend on the category, the category you belong to like Open, SC, ST, OBC..
Cutoff also vary for government, private and deemed University.
It depends also on state of domicile and choice of college.
So its quite difficult to predict the minimum marks for BHU. 
Last rank which got admission in Veterinary college for unreserved category is 350 to 707
So for safer side try to score 400 +marks for geeting seat in Veterinary college.

The fees structure for bvsc course in bhu in total amount will be approx 50k+ which means per year it would cost around 10k upto 5 years and its a 5 and half year course.

Good luck