Greetings,
The fee structure of BA LLB is different for different colleges and universities. For government law colleges , the fee ranges from INR 10,000-50,000 per year. For private law colleges, the fee ranges from INR 1,00,000-3,00,000 per year. This is just an estimated average amount, this amount can vary for different colleges / universities.

The link attached below consists of the top law colleges in India.

https://law.careers360.com/colleges/ranking

I hope it helps.