Actress Vidya Balan, along with a few real detectives, unveiled the trailer of her forthcoming film "Bobby Jasoos" here Tuesday.

"I have never seen such a turnout for any of the events. Thank you for coming. It was a very different experience altogether shooting for this film. We did a lot of research and met a few detectives and spoke to them before shooting for the film," Vidya told reporters during the trailer launch of "Bobby Jasoos".

Actress Dia Mirza, who is one of the producers of the fim, says Vidya was the only choice for the role.


"I have worked with Vidya before and she is one actress who gives her best. I have witnessed her working style and she puts in everything for a film," she said.

The two actresses worked in the 2005 release "Parineeta".