Good Afternoon

Hope you are fine...

As per your query... No!!! you can not join any veterinary college in Tamil Nadu by only your 12th marks, you have to qualify any one of the entrance examination; NEET or TANUVAS apart of this you must have passed class 12th from Physics, Chemistry, Biology stream with minimum 50% from any recognised board.

You can pursue BVSc Veterinary Science from Animal Nutrition, Animal Genetics, Animal Health, Animal Physiology, Animal Biotechnology and, MVSc Veterinary Science from Animal Nutrition, Animal Genetics, Animal Health, Animal Physiology, Animal Biotechnology.

Here is the list of top Veterinary science colleges in Tamil Nadu:

• Tamil Nadu Veterinary And Animal Sciences University
• Veterinary College And Research Institute
• Research Institute In Animal Sciences
• Madras Veterinary College

For more information checkout given link below:
https://medicine.careers360.com/colleges/list-of-veterinary-science-colleges-in-tamil-nadu

Hope you found it helpful
All the best!!!