Ajay Devgn's next film is turning out to be a family affair. Son of Sardar features his mother-in-law Tanuja and sister-in-law Tanishaa as well.

The comic caper, which stars Sonakshi Sinha, Sanjay Dutt and Juhi Chawla, is currently being shot in Punjab. Says a unit source, "The presence of Tanuja and Tanishaa on the sets was a source of curiosity.

Initially, it was thought that the Mukerji women had arrived to just check out the action, as it is Ajay's production."

Apparently, Devgn and his folks do not want to talk about the casting at this stage.

The source affirms, "They are definitely acting in the film." However Tanishaa states that her presence on the sets is due to Ajay. She maintains, "It's my family's production but I am not acting in it."

The source continues, "They seem to be having a blast on the sets. Ajay is well-known to be a prankster on the sets.

Over the weekend, he distributed mithais full of chillies and Tanishaa was particularly enjoying herself seeing the faces of the cast and crew."

As reported 'Chaos in Chandigarh' the shooting at the city's railway station had led to chaos with police resorting to a lathi charge.

In the past

Last year Tanuja did a cameo in Ajay's film Toonpur Ka Superrhero which starred him along with Kajol.

In 2008, Ajay along with wife Kajol and mother-in-law Tanuja judged a television reality show.

Ajay and Tanuja featured in the horror flick Bhoot in 2003.

Tanishaa and Ajay were part of the 2005 film Tango Charlie.