Dear Ayushi,
It will depend on the institute you choose. For example, Faculty of Law @SGGSW Uni. charges Rs. 23k/sem. while NLSIU Bangalore charged Rs. 200K/year for their respective BALLB programms.

Fculty of Law@SGGSWUniversity : Rs. 23100/semester

NLSIU Bangalore Fee (2017-18): Rs. 198700/year (General)

: Rs. 196200/year (SC/ST)

I hope it helps.

The fees in Alliance Bangalore Law school is different for all 5 years. There is the registration amount of Rs 25K that is non refundable amount and also the fees for first year is Rs 1,75,000 for Indian nationals. You can check the complete fees details in this college here. Good Luck. 

Thankyou