The police have registered an FIR against JD(U) MLA Narendra Kumar Niraj alias Gopal Mandal for allegedly singing Bhojpuri songs with a double meaning at a programme in Bihar's Bhagalpur district, officials said on Thursday.

In a purported video which has gone viral, Mandal was seen belting out Bhojpuri numbers with double entendre at the function organised ahead of the Holi celebration.