Mumbai (Maharashtra) [India], September 28 (ANI): Bollywood actor Ranbir Kapoor, who is celebrating his birthday today, had a fun birthday celebration with the paparazzi and fans. The Animal actor was all smiles as he cut a cake with the photographers, stationed outside his residence. Ranbir was seen happily interacting with the paps, even feeding them cake with his own hands. The actor looked dashing in a casual, sporty outfit, wearing a grey tracksuit with a zip-up collar, a white cap worn backwards, and black-and-white sneakers. Earlier in the day, actor Alia Bhatt commemorated her husband …