"There is a song by Aerosmith called 'Pink' and it has lyrics 'Pink it's like red but not quite'. We associate pink with softness but it can also be angry and fierce and 'Gulaab' in 'Gulaab Gang' represents that," he told the media here during a promotional event.
Responding to questions on this, Madhuri said: "I wouldn't say (we were) competitors, I would say contemporaries... finally we got a film that was worthwhile and we had a great time doing it."
Sen also clarified that the film is not centred on Uttar Pradesh-based social activist Sampat Pal and her Gulabi Gang, which works towards liberation of women in the state.
Producer Sinha had earlier tweeted that it is fiction.
A documentary titled "Gulabi Gang" directed by Nishtha Jain released Friday.