Viewers will be able to see several important landmarks and places of the state including Digha, Sunderban, Dakshineswar and St Paul's Cathedral Church.
Chowdhury said the film is an 'idea film'. He said Khan's portions were shot in Mumbai.
Khan, who is also the winner of the current Indian Premier League (IPL) winning team Kolkata Knight Riders, had asked Mamata to make a film like this one when he met her at the state secretariat Writers' Building earlier this year.
Khan said he will only take a 'fish fry' as his fee for working in the film.
Pertinently, Mamata felicitated the IPL winning Knight Riders team at Eden Gardens earlier this year.