The song which goes 'Itna bada Jahan hai, Chalo doondh laye usko, Sare Jahan se Accha woh Hindustan Kahan hai', is politically-tuned against corruption in India and a derivation of the patriotic song 'Sare Jahan Se Accha Hindustan Hamara'.
Ghai said the film carries a message for the masses through the story of a young girl, who comes to the city and faces corrupt power.
"The girl gets the impression that the poor people must not speak. We are the government; we know how to deal with it. You are nobody... But she tells them that I am somebody," said Ghai, who is in Singapore for the second Bengali International Film Festival being held September 5-8.
"Kaanchi" also has a thumka song and an item number.
Actor Kartik Tiwari and newcomer Mishti play the lead roles along with veterans Rishi Kapoor and Mithun Chakraborty.