Mahesh Bhatt turns 70 on September 20. Considering it as a landmark birthday, Mahesh's wife Soni Razdan, and daughters, Shaheen Bhatt and Alia Bhatt, are pulling out all the stops for his big day. It is said that the filmmaker has personally invited Ranbir Kapoor for the bash.

This will be the first time that Alia's beau will mingle with the Bhatts and the extended family. It's a busy time for Alia as a party planner for dad as well as Ranbir Kapoor who turns 36 on September 28.