The Kapoor family on Wednesday had double celebrations as it marked the birthdays of two people--actor Ranbir Kapoor and his aunt Rima Jain. Karisma Kapoor wished Ranbir Kapoor on his birthday. Taking to her Instagram account, Karisma Kapoor shared a throwback picture featuring herself and Ranbir. Posting a selfie as the duo posed for the camera, Neetu wrote, "Happy Birthday …