what action can be taken when a step son of a woman include his name in the Govt., records in her Property after her death wilfully

Sir, A step son of a land lady submitted his personal details to the recording officer to include in the Municipal Office Online records after knowing the death of the landlady which came to notice of his fraudulent activities by the recording officer. What action can be taken against this fraudster and where to give complaint sir. Under which section he can be booked. Please let me sir.
warm regards,
saqln

Register FIR against the wrongdoer through a local lawyer.

Any authority has to act as per laid down norms and they have to act as per citizen charter.  A mutation can neither give nor take away rights of ownership title.  Focus on your issue and your interest in the issue.

You have not posted the material facts.