Actor Kareena Kapoor Khan extended birthday greetings to her cousin sister and late legendary actor Rishi Kapoor's daughter Riddhima Kapoor Sahni with a priceless throwback picture. The 'Jab We Met' actor took to Instagram to share the throwback picture from her childhood.

The monochrome picture that features the Kapoor sisters -- Karisma Kapoor, Kareena Kapoor and Riddhima Kapoor -- along with their grandfather and iconic superstar Raj Kapoor.