The film will be directed by Shoojit Sircar and produced by actor John Abraham. The two had earlier teamed up for 'Vicky Donor', which did good business at box office.
"'Jaffna' is based on the Liberation Tigers of Tamil Eelam (LTTE) and the civil war in the Sri Lankan city. It will be a dark political thriller with John playing an Indian intelligence agent," Shoojit said.
"We have John in the film. We are in talks with Prosenjit. We are trying to work out on his character. As of now there are two things in mind for Prosenjit - a simple, normal citizen of India and other is police officer or may be something else. But nothing is finalised yet," he said.
On whether there was a character based on former Prime Minister Rajiv Gandhi, who was assassinated by the LTTE in 1991, Shoojit said, "There is no character of Rajiv Gandhi in the film. We are still in the scripting stage. It is a piece of fiction. We might start shooting by the end of the year."
Mumbai Roundup: 9 incidents that took place this week
Photos: Ajay Devgn, Parineeti, Tabu at 'Golmaal Again' trailer launch
Photos: Dipika Pallikal Karthik oozes oomph in bikinis and sarees
Photos: Kareena Kapoor Khan's grand birthday bash
Photos: 'Dangal' girls Sanya Malhotra, Fatima Sana Shaikh's dinner outing