Farah Khan and Shirish Kunder announce their next production Joker and celebrate their triplets' birthday

It's dual celebration for Farah Khan and Shirish Kunder. Their triplets (Anya, Diva and Czar) turn three today and their next production Joker also goes on the floors.

Shirish takes off for Chandigarh in the morning for the shoot of his directorial venture after wishing the tots.

"He was to start shooting three days ago but delayed it as he wanted to wish the kids on their big day and then leave, " says the doting mother who will be throwing a party in the evening at brother Sajid Khan's place.

"Shirish will be missing at the bash but he can't delay the schedule any longer. The film's entire cast consisting of Akshay Kumar, Sonakshi Sinha, Shreyas Talpade and Minissha Lamba are heading for the shoot."

The birthday bash is for kiddies of Anya, Diva and Czar's age group and children from their school. "There is no point calling bigger kids as they don't enjoy with them around, " says Farah.

The party's theme is of a carnival. Czar has asked for a helicopter-shaped cake while the girls want doll-shaped ones.

Like every year, Anya and Diva will be dressed in Parsi-style frocks that Farah's mother has gifted from a well-known store in south Mumbai.

Photographer Avinash Gowariker will be taking a birthday portrait of the kids. Farah is keen to make this photo session with Gowariker a birthday tradition.