I am looking forward to create my strategy over bank nifty spot, Do I need to select expiry month too ?? Please help
If you are looking to select for spot price, just select NFO -> Bank Nifty - This will the give spot value. Now, if you select expiry month, then it will give for futures chart.
Pls Refer the image below
Similarly for Nifty 50 Spot: use NIFTY 50 above.