Policeman's Privilege v. Right to Reputation

So, bhai, imagine yeh scenario: A police constable, Kumar, in a small town, is known for his honesty and integrity. One day, during a raid, he finds a stash of contraband in a local shop. The shop owner, Mr. Singh, gets arrested on the spot. However, later it's discovered that the constable was in a deep financial crisis and had a history of extorting money from shop owners.

The shop owner files a defamation case against the constable, alleging that he was falsely accused and defamed. He claims that Kumar's actions severely damaged his reputation in the community. Now, bhai, what legal remedy can the shop owner claim against the constable? Is it damages for defamation or something else entirely?