Live option chain data from NSE. Max pain = the level where option buyers lose the most at expiry.
How to use max pain: Check it on Monday for context, and again on Wednesday evening. When NIFTY is significantly above max pain heading into Thursday, there is gravitational pull downward — option writers will defend. When below max pain, there is pull upward. It is a probability tool, not a certainty. Combine with PCR and top OI strikes for your complete pre-trade picture. Practice acting on this data on PaperPe.