Kishore Kumar has an inordinate fan following, but the director of Gulaab Gang,Soumik Sen, is such a big fan that he chooses to be called ‘Bangdu’ (what Kishore Kumar called his protégé in Padosan) by his own fans on Twitter. Much as you expect from a true-blue Bengali, he has written 3 Bengali biopics that will be made by the end of 2015
Priya Gupta (BOMBAY TIMES; February 19, 2014)

PC SORCAR: To be directed by Soumik Sen himself.
SOUMIK: This is the story of the legacy of magic being passed on from the father to the son and the untold story of the greatest magician in the world. (Senior PC Sorcar, pictured left, died in 1971. PC Sorcar Junior, pictured right, is who we know today as PC Sorcar). He is my friend and I have his permission to make this film. The film will be shot in Kolkata, Japan and Brazil and I will start working on it as soon as I am back from Brazil, as I am going there for the football World Cup.
 
1911: To be directed by Shoojit Sircar starring John Abraham.
SOUMIK: This true story is based on 3 things that happened in 1911. The National Anthem was sung for the first time in the Indian National Congress. The capital of India shifted from Calcutta to Delhi. Rabindranath Tagore turned 50. What makes this story interesting is the fact that all these 3 things are related to that match where Mohun Bagan (the Indian Calcutta team) defeated the British Yorkshire Regiment 2:1, that too playing barefoot against their opponents in full boots.

KISHORE KUMAR: To be directed by Anurag Basu starring Ranbir Kapoor.
SOUMIK: I am fascinated by making Bengali biopics, but nobody is closer to this script than me. I am a devotee. My one reason for writing Kishore Kumar was Martin Scorsese. I see the biopics Scorsese has done and the kind of people he has chosen and I have always wanted to tell him, ‘Wait till you see the life of this guy. You ain’t seen nothing.’ Richard Attenborough made one on Chaplin, somebody made Peter Sellers, somebody else made Jim Morrison. None of them compare with Kishore Kumar. He is the cumulative talent quotient of Elvis, The Beatles, Chaplin and Michael Jackson put together.