On Karisma Kapoor’s 51st birthday, sister Kareena Kapoor Khan shared a heartfelt Instagram post with a throwback photo of Karisma and Saif Ali Khan. Kareena called her the “strongest and bestest girl” and wrote, “Tough times don’t last… the toughest sisters do.” She described Karisma as her sister, mother, and best friend, reflecting their deep bond and recent challenges.