Heart Attack - S1.E132

The day of the farewell comes and everyone is getting ready for the part. Naina wants to wear the saree that Sameer gave her but her family gets to know about the saree so she lies to them saying that she borrowed it from Shefali's mother, gets ready and reaches the party. Sameer also gets ready for the party and is about to leave when his Nanu gets a heart attack and collapses. What will happen now?