Perariyathavar (English: Names Unknown) is a 2015 Indian Malayalam film directed by Dr. Biju. The film revolves around two sweepers and the problems they encounter in life, depicting the agonies of the marginalised section of society. The film stars Suraj Venjaramoodu and Indrans. It won the National Film Award for Best Film on Environment Conservation/Preservation. Movie is credited as 200th film of Suraj. Suraj received the National Film Award for Best Actor for his performance.