Katrina is carrying a bundle full of woollens in Shimla to fight the chilling winter. Before heading to Shimla, to complete the schedule of Bang Bang, Katrina Kaif, took regular updates about the changing weather conditions there. Kat, who started shooting on Sunday afternoon with Hrithik Roshan, is not willing to take any chances because she's going to get neck-deep in work soon after this project.

As the weather got warm on Sunday, Katrina, looked extremely ecstatic, and began the shoot. "She likes warm weather. We are hoping that it's going to stay like this for some more days," a source said. An insider told us that two production crew members have been assigned the task to contact the meteorological department on a regular basis. "The shoot has to complete soon. So, the weather plays an extremely important role," a source said. The director, Siddharth Raj Anand, is also worried as the film's shoot has already been delayed due to Hrithik's health.

The shoot mostly happens during the day time. As it gets cold in the evenings, both the actors stay in their hotel rooms to keep warm. The unit will soon head to Manali to wrap up the remaining part.