Which stock options are most liquid and volatile?

How to find stock options which are most liquid and volatile and easy to get in and out?

Tatasteel, SBI, Tatamotors, Reliance, Axis Bank, ICICIBANK…

You can find which stocks are most liquid by looking at the volume. You can find it in NSE website
Few examples for liquid stocks are SBIN, IOC, ICICIBANK, TATAMOTORS, HINDPETRO, HINDALCO YESBANK, VEDANTA, INFY etc in nifty 50
About volatility, it is also important to see if there are some data or news coming out relating to the particular stock.
In this link from NSE website you can see the volume, also classified into different sectors you can choose from.