Author Twinkle Khanna turns a year older today. She shares her birth date with her late superstar father Rajesh Khanna. Every year, Twinkle shares a picture with her father on their birthday. On Thursday, Twinkle shared a happy childhood picture and called it a 'bittersweet' moment. 

In the picture, a little Twinkle can be seen dressed in a frock as she plays with her father. Both can be seen looking away from the camera with a wide smile on their faces. Sharing the picture ion Instagram, Twinkle wrote, "A bittersweet shared birthday and a lifetime of memories." Bobby Deol and Malaika Arora dropped red heats in the comment section of the post.