The FIR was registered against MLA Ram Kadam and 15 others after a mob barged into the office of Brihanmumbai Municipal Corporation's Deputy Engineer Mahesh Fad (36) at Ghatkopar on Thursday, police said.

The alleged assault on Fad was after he had overseen the demolition of an illegal two-storey house in Bhatwadi, Ghatkopar (East).