The Kerala Police provides a tenant verification service through their online citizen service portals - THUNA website and the Pol-App mobile application.
The service is essentially a background verification that checks whether the person in question has any criminal record or pending case in police databases. Landlords can request a Certificate of Non-Involvement in Offences (NIO) for this purpose.
To use the service, applicants shall create an account on THUNA or Pol-App, fill in the details of the prospective tenant, upload identity and address documents, and pay the prescribed government fee.
The request is then processed by the local police station through what they call the iCOPS (internal core policing system ) a platform they use internally. After verification, an officially issued certificate is provided to the applicant.
This service can be used for employee verification and domestic help verification as well
Official link: https://thuna.keralapolice.gov.in
Here's my take : From what we understand, this appears to be more of a database search rather than a ground-level investigation. In simple terms, it checks whether the person’s details appear in police records. Still it is useful for many.
However, If the police could offer a background ground level verification services (for a fee) ,along with NIO - many landlords would be happy to pay and use it. Property owners will treat it as a valuable service, and at the same time bring in a new steady source of revenue for the department. In the eco system of property rentals, this could be a potential layer. Am not factoring in logistics, politics or any other social aspects to this. I just know that many property owners will value such a service.
Disclaimer : Details shared are based on online research and not based on using the services first hand. Sharing with the intention to spread the word.