'Kyunki Saas Bhi Kabhi Bahu Thi' 22nd April written update: Karan denies affair while mystery deepens

At a party, Nandini confronts Karan about an alleged affair, leading to a public argument and Karan swearing his innocence. Meanwhile, Pari makes a critical error with medicine at the hospital, while a mysterious woman's presence with Karan at a clinic deepens the intrigue and Tulsi's confusion.