Here is example of using complaint to vigilance department for lack of proper process during police investigation:
Here is another thread on SIF giving various people’s success / result of complaining against police vigilance department:
Template for getting RTI info from police about a particular crime. You can modify the below RTI to change it to crime reports on e.g.: Dowry complaints, 498A complaints, Chain snatching incidents etc.
Information on RTI for Hyderabad police: