your older sister Kiara died when she was 8 because of murder your mom pragya then divorce your father abishek and then your father having your one sister Riya and your mom is having you and prachi now you all grown up and no one knows she's out sister and Ranbir always messes with prachi with his friend Aryan

Ranbir:hey my time passer prachi

Prachi:what you want

Ranbir: see you who is she prachi another friend

Prachi:my sister