Alia Arjun Together

Love birds Ranbir-Katrina and Alia-Arjun spotted at Karan Johar's impromptu bash (view pics)

New Delhi: It's said that once together there could be no better reason for celebration. Bollwood couples- Ranbir-Katrina, Alia-Arjun and other celebs got together for filmmaker Karan Johar's impromptu bash at his residence in Mumbai.Ranbir