Ranbir Kapoor turns 37 tomorrow, September 28. The actor will be ringing in his big day tonight. Ladylove Alia Bhatt and bestie Ayan Mukerji have planned a surprise for him. Though there has been news that there will be a big bash as the Kapoors have lots to celebrate, which includes Rishi Kapoor returning home after receiving treatment in New York, Ranbir is not exactly known to be party-hearty. So you never know what the Kapoor lad will do at the spur of the moment.

Last year, mum Neetu Kapoor had invited Alia and her mum Soni Razdan over. The below picture was clicked at a dinner hosted by Ranbir's aunt, Rima Jain, who shares her birthday with him.