Heer Toh Badi Sad Hai Lyrics from the hindi film Tamasha is composed by A.R. Rahman. Mika Singh and Nakash Aziz have sung this song which is written by Irshad Kamil.
Sajid Nadiadwala has produced this film and Imtiaz Ali has written and directed it. Ranbir Kapoor and Deepika Padukone are playing lead roles in this movie.