'Yeh Rishta Kya Kehlata Hai' January 15 written update: Armaan and Meher find out about Vani, chaos ensues

A birthday celebration turns dramatic as Vani, revealed to be Rajat's daughter, is brought into the Poddar home. Abhira's deception about Vani's identity causes a rift with Armaan. Meher's fury escalates when Vani destroys her cake, leading to a confrontation where Armaan defends his wife's actions, promising a deeper truth will unfold.