Both probabilities to understanding of premium values.last day end time to be considered as CMP ,Today's market at the end will give idea about Premium change.
Option Bank nifty Put premium,strick. Price,in the Money.
Expiry Day_market Moved in consolidation zone .Opened in gap down consolidated in no trading zone.
Support & resistance for next day trading.bullish market buyers active at the end of day
Last day support & resistance strategy worked and two trades positionsn appeared. Trading profit to loss ratio with 2:1.