NEW DELHI: Renowned singer Mika was today booked for allegedly slapping a doctor at a live concert in south west Delhi here.Delhi Police has registered a case of causing hurt and wrongful restraint against him at Inderpuri police station even as a video of the alleged incident appeared on some websites.The victim Shrikant, an ophthalmologist posted at Ambedkar Hospital, has suffered some internal injury inside his left ear due to the assault.The incident took place yesterday evening at a concert organised by the Delhi Ophthalmological Society (DOS) as a part of their three-day conference being held at the Delhi Pusa Institute Mela Ground in Inderpuri."While performing, Mika had called some of the audience on stage for an activity. During the activity, something done by the doctor irked Mika who then slapped him and handed him to the bouncers," said a police official.Soon after the incident, victim's colleagues created a ruckus at the venue but police immediately intervened and promised action against Mika following which an FIR was filed against the singer.