"Saria" is "Metal Rods" in hindi
One pakistani having his business in Iron rods was sitting in office and got the call
Indian : "Saria (rod) hai? "
Paki : "Hai."
Indian : "Gand me dal de"....and the Indian disconnected the call.

Again on the next day paki got a call....
Same Indian : "Saria hai ?"
Paki (trying to be smart) : "Nahi hai"
Indian : "Gand me dal dia kya ?".....and the Indian disconnected the call.

On the third day again paki got the call from the same Indian
Indian : "Saria hai?"
Paki (trying to be oversmart) : "hai bhi or nahi bhi"
Indian : "Ander bahar kar raha hai kya?"......and indian disconnects the call.

The next day (after the ander-bahar wala din) the paki thinks of taking
revenge...
he calls up the indian
Paki : Saria hai?
Indian: Kyon? Gaand mein dalna hai kya???