While her birthday celebrations were quite the talk of the town, for the whole week, not many know that Katrina Kaif also celebrated her birthday with her 'Mere Brother Ki Dulhan' co-star, Imran Khan. Imran and Katrina were strangers to each other earlier but became thick friends while shooting for the above mentioned Yash Raj film.

Imran called for a small celebration for Katrina on the eve of her birthday. It is believed that Imran arranged a cake for the birthday girl, who was busy running from around promoting her film 'Zindagi Na Milegi Dobara'. Apparently, Imran's arranged cake was the only one that she had cut for her special day, as other celebrations with her ex-Salman Khan, was more of a grand dinner and lunch with the 'Khan-daan'. Imran has promised Katrina that he will present her with her gift, once he returns from his honeymoon.