Yeh Un Dinon Ki Baat Hai S01 E292 Kumar Sanu is Here

" It's a story about those days"

Sunaina finds a reason to humiliate Naina. Swati learns about Sunaina and Karthik's plan and decides to help Naina. Meanwhile, Kumar Sanu arrives and the principal is searching for Naina as she was supposed to welcome the singer. What has happened to Naina?