The actress was born into a film dynasty. Her older sister Karisma ("Lolo") was firmly established before giving up her career to become a mother.
Speaking to Mid Day about International Woman's Day, Kapoor said: "As far as Lolo is concerned she is the reason why I joined movies.
"As a child I always wanted to be like her. I trust her opinion on everything from little things to bigger decisions and relationships. Lolo is the closest to me."
She added that she also owed an "irreplaceable" amount to her mother, the former actress Babita.