Tenant's TPA Trouble

Suppose Rajesh rents an apartment in Bangalore from Rohan. Their agreement doesn't mention the security deposit, but it's a mandatory requirement in Karnataka under the Shops and Establishments Act. Rajesh pays Rs. 50,000 as security deposit. After 5 years of tenancy, Rajesh moves out, and Rohan deducts Rs. 20,000 from the deposit for damages to the property. Rajesh objects to the deductions, claiming it's not a valid reason. Who's right in this scenario? Is Rohan justified in deducting the money, or does Rajesh have grounds to file a complaint under the Tenancy Protection Act or elsewhere?