Watch: Alia Bhatt, Ranbir Kapoor and Neetu Kapoor put on their dancing shoes for a groovy surprise on Riddhima Kapoor Sahni's 40th birthday

Daughter of late actor Rishi Kapoor and Neetu Kapoor, Riddhima Kapoor Sahni turned 40 today. The entrepreneur, who resides with her husband and daughter in Delhi, is in Mumbai with her.....