Hello there,

There are many sub-courses under criminology courses which can be done by graduates under national institute of criminology and forensic science you can look for the desired area of expertise-

MA criminology

PG diploma in investigation of cyber crime and law

PG diploma in security management

PG diploma in victimology and victim assistance

There are various other institutes which provides various criminology courses whose link I am providing below-

https://university.careers360.com/colleges/list-of-criminology-and-forensic-law-universities-in-india

I hope it helps.

Regards

Madhur