Titled "The Best Seller", the film has sex workers sharing their experiences of taking part in previous elections with real-life actresses.
Orishita Mukherjee, niece of popular Bengali actor Kharaj Mukherjee, told PTI on the sets of the film that she was playing the role of a brothel owner.
"In the film, I ask the sex-workers employed in my brothel to exercise their franchise in the coming Lok Sabha election," Mukherjee said.
The characters discuss the importance of electing a candidate who can give them protection against the toughs of political parties who harass them in the plying of their trade.
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Moitra said that the cast and crew of the film spent days in the redlight area to perfect their walk, manner and the typical delivery of speech.
"Even when they stood in a queue waiting for their turn to cast vote, their body language shows their 'couldn't careless attitude'," he said.
The director said he was grateful to NGO "Durbar Samanway Committee" for helping the crew to have a free access to the area for shooting and making it possible for real life 'arkathis' or pimps to act in the film.