Goa Police have registered a case against model Milind Soman for allegedly promoting obscenity, after he recently posted a picture of himself on Instagram running nude on a beach in the state to mark his 55th birthday, a police official said to PTI on Saturday.

The photograph was taken by his wife Ankita Konwar.

The case was registered on Friday, a day after Goa Suraksha Manch (GSM), a political outfit, lodged a complaint in this connection, he said.

"Soman has been booked under IPC section 294 (obscene act in public place) and section 67 of the Information and Technology Act after the complaint by Goa Suraksha Manch," Superintendent of Police (South) Pankaj Kumar Singh said.

The GSM in its complaint has alleged that the model had indulged in obscenity at a public place. It also said that the picture projected Goa in a wrong manner, the report added.