Kindly advise how can I trade in f&o on zerodha kite platform
You will have to activate F&O segment for your account, the process for the same has been explained here.
The process to trade (Buy - Sell) F&O is same as trading stocks. But before you start trading F&O, would suggest you to learn more and get to understand how Futures and Options work.
You can learn everything in detail on Varsity: