Everyone is so tight-lipped about the cast of Aamir Khan Production's Delhi Belly that it becomes hard to say whether they"re making a film or designing the blueprint for the national defence.

We all know that the film"s leading man is Aamir's nephew Imran Khan. Beyond that everyone is silent on the cast, including Imran himself.

When asked about the cast he chuckled, "Sorry I"m not at liberty to talk about the rest of the cast, besides myself."

Ask him if it"s Lisa Ray who was to earlier play the female lead when Ranbir Kapoor was to play the lead. "No it isn't Lisa Ray. Beyond that you won't get anything out of me," Imran laughs.

The cloak of secrecy further deepened recently when veejay-turned-part-time-actress Shenaz Treasurywala was mysteriously quoted as saying, "It's a fantastic production. And my costar…there is not a single young lady in India who doesn"t believe he's the most adorable thing around."

The 'fantastic production', as it turns out, is none other than Delhi Belly. And the 'the most adorable thing around' is Imran Khan. Shenaz, who made her screen debut opposite Shahid Kapoor in Ken Ghosh's Ishq Vishq, also did a walk-on part in Kunal Kohli"s Hum Tum.