Hello Amgen,

There is no college in Bangalore who provides the B.A in criminology. There are some colleges in Karnataka which are listed below.

CM Managuli Arts and Science College

Government College Mandya - GCM

Maharaja Madakarinayaka First Grade College - MM

School of Social Work Roshini Nilaya - Autonomous

Shree Siddeshwar Government First Grade College

You can go for these colleges as they are in Karnataka only. 

There are several colleges in Bangalore who provide b.sc in criminology. These are the top colleges that offers bsc in criminalology

Bangalore Medical College and Research Institute, Bangalore. Fort, K.R. Road , Bangalore (Bengaluru Dist.) 
Kasturba Medical College, Manipal. ...
MS Ramaiah Medical College, Bangalore. ...
Jawaharlal Nehru Medical College, Belgaum. ...
Jain University, Bangalore. ...
All India Institute of Speech and Hearing, Mysore.

If you can go for b.sc you can choose any college of your choice.

Good luck.