hello shreyashi, 

for the veterinary course in India, you need to go for BVSc and keep in mind that you should only opt for this course if you are really fond of pets and animals.

for this, you msut have passed 10+2 or equivalent exam in science stream with PCB. 

there are even colleges that keep their own entrance exams. 

so kindly refer to the college you want to go for in particular, so that we could help better.

good luck