Express News Service CHENNAI: After almost two weeks, the Pallavaram Police has finally filed a First Information Report (FIR) on miscreants who dumped heaps of garbage in the Putheri Lake located there. However, the FIR is filed against ‘unknown’ persons, even as the police claims to have held one of the culprits. The FIR was for the compliant filed on December 31 by activist David Manohar of Arappor Iyakkam, an anti-corruption NGO. Speaking to The New Indian Express, Elangovan, Inspector of Police, Pallavaram, said an FIR was filed on Saturday afternoon under section 277 IPC - which gives punishment with imprisonment or a fine of Rs. 500 to those who foul the water in public places.