Kyunki Saas Bhi Kabhi Bahu Thi

Tanya observes "Karva chauth" fast for Karan, and ensures that Nandini does not come to know. Meanwhile, Mihir invites Gautam and Damini for the "Karva chauth" puja. Later, Nandini asks Tanya about the three years in Karan’s life when she was not around. Will Tanya tell her the truth?