Reverse Pendulum services

I have given a link: 

http://www.youtube.com/watch?v=mXKR97DWEr0

Pls see it and tell how to do the service. 

THANKS 
SHAANT 

Hi Shaant,

This serve is called the Reverse Pendulum serve.  Take a look at this link. Reverse Backspin in our Ask the Coach video responses.