Singer Sonu Nigam and his team were allegedly manhandled at a music event in Mumbai’s Chembur on Monday night. The police Tuesday booked Swapnil based on Nigam’s complaint. Swapnil is the son of Chembur MLA Prakash Phaterpekar, a leader of Uddhav Thackeray’s party. Nigam and his team left the spot soon after the incident and filed a complaint regarding the same at the Chembur police station.