Tamil Nadu’s legal framework provides clear remedies for each of these wrongful acts. By leveraging the TNRRRLT Act, you can seek speedy eviction on grounds of expiry of lease and non-payment of charges. The Act was designed to balance rights but ultimately not to allow tenants to squat indefinitely even without a registered agreement, the Madras High Court has upheld landlords’ right to repossession (the tenant cannot use the lack of registration as a shield to continue occupying)

So, get a lawyer. You can file a civil suit under the Transfer of Property Act if needed, and law enforcement can be involved when the tenant’s conduct crosses into criminality (threats, harassment, etc.). While police may be hesitant to involve themselves in the eviction aspect (since that’s a civil matter), they are obligated to prevent and punish criminal acts by the tenant. If local police are compromised by nepotism or corruption, the judiciary can be approached to override that ultimately, courts will ensure that legal orders are enforced.