Rensil D'Silva was slated to begin shooting for his film on Saturday on the streets of South Mumbai

But as Prime Minister Dr Manmohan Singh was in the city over the weekend and in the same area, the shoot had to be cancelled due to security reasons.

A source says, `As soon as the cops got to know about the shooting taking place in the same area the PM would be in, they told the production folks to cancel their shooting.` Adds the source, `Shooting will now start at a later date.

The unit has built a humongous set in Film City like a real town.` Produced by Karan Johar, the films stars Sanjay Dutt, Emraan Hashmi, Kangna Ranaut, Randeep Hooda and Neha Dhupia.