Option Chain in trading

Nifty option chain is considered to be the best advance warning system of sharp moves or break outs in the index.
What is Implied Volatility (IV)? Implied Volatility (IV) uses an option price to determine and calculate what the current market is talking about, the future volatility of the option's underlying stock. Implied volatility is one of the six essential factors used in options pricing models.
The Nifty Option Chain provides a listing of all the available options contracts for the Nifty 50 Index; including the strike prices, expiry dates, and the corresponding premiums. The list shows all call and put options that are available against a specific underlying.