A case was registered on Tuesday against actor-turned politician R Sarathkumar, who is contesting the May 16 Tamil Nadu assembly polls in alliance with AIADMK, in connection with the seizure of Rs nine lakh cash from his car last week in violation of election rules.

The case was registered at Arumuganeri police station, Special Tahsildar P Vallikannu said.

The seizure was made on May 7 by an Election Flying Squad while on a vehicle check at Nallur Vilakku in the district. The amount was later deposited in the treasury.

Sarathkumar, chief of All India Samathuva Makkal Katchi, is the lone candidate of the party and is contesting from Tiruchendur constituency in the district on AIADMK symbol.

The case was registered against him under IPC section 171H (illegal payments in connection with an election) as he could not produce documents for carrying the cash, Vallikannu said.