hello,
a marks of 540/720 is necessary to be on the safer zone outside tamil nadu and 440 in tamil nadu itself out of 720. now, to be eligible for BVSc, attend AIPVT (All India Pre Veterinary Test) exam conducted by VCI (Veterinary Council of India).
for UR category, AIR of 12K is safe, so you may check accordingly.
good luck
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