Is India Vix Implied Volatility of Nifty?

Is Indix Vix and Implied Volatility of Nifty same thing or different??

And if different, I am not able to see IV of nifty in NSE website

VIX is an index based on all the options of all the stocks. Not really IV of anything.

IV is different for each option. Check here for Nifty Futures :