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In the throwback photo shared by Sunita Kapoor, Reena Marwah can be seen posing with her niece Sonam Kapoor

Is there something like a Throwback Tuesday? Because we just spotted a blast from the past, featuring none other than actress Sonam Kapoor. Tuesday marked the birthday of Anil Kapoor's sister Reena Marwah and Sunita Kapoor wished her sister-in-law with an adorable throwback post on Instagram. In the throwback photo shared by Sunita Kapoor, Reena Marwah can be seen posing with her niece Sonam Kapoor, who was just a little girl. "Happiest birthday to my darling sister-in-law. Love you the most," Sunita Kapoor wrote for Reena Marwah. Pint-sized Sonam Kapoor clearly steals the show in Sunita Kapoor's throwback post. Here, take a look.