The Hyderabad police on Sunday sent a notice to Malayalam film director Omar Lulu, seeking an explanation from him about alleged objectionable lyrics of a song in his film ' Oru Adaar Love,' in which actor Priya Prakash Varrier's wink became an internet sensation. The notice, which was posted on Saturday, was served by the Falaknuma police as a case was registered on February 14 based on a complainant from locals.