Ranbir Kapoor celebrates his birthday today. The actor's celebrations for his special day began last night, when his girlfriend Alia Bhatt threw a party for the actor as he turned 37-year-old. The party was attended by Shah Rukh Khan, Aamir Khan, Deepika Padukone, Ranveer Singh and others.

However, Ranbir did not wish to ring in his special day only with his celebrity friends. The actor, thus, went ahead and celebrated his 37th birthday among fans. He was, of course, bombarded with selfie requests, and Ranbir obliged, at least to most of them. The actor, who was meeting his fans from a rooftop, also accepted flower bouqet from them.

Meanwhile, a video of Alia Bhatt baking Ranbir's favourite cake made rounds of the internet. The female actor was seen giving finishing touches to Ranbir's favourite, pineapple-flavoured cake. The actress covered the layer of cake with cream and toppings.

Ranbir Kapoor and Alia Bhatt are spending most time with each other currently both at work and in personal life. They will appear in Ayan Mukerji's trilogy - Brahmastra, which is produced by Karan Johar. Apart from the movie, they are a couple in real life, who are quite close to each other's families too. If reports are anything to go by, they will soon tie the knot, too.