Hi team,
The problem is trading_symbol example NIFTY 27000 PE 26 JUN 25, do not match against the expiry date - 1750962599000, converted to be 2025-07-25 Friday
Note, the instrument put option is of 26th June 2025, however the expiration is July 25th ?
If I have to calculate the expiration timestamp, it comes out to be as 1750895400000. No such entry of 1750895400000 exists in today’s NSE.csv
Please check this. Also advise on how to sort options if the expiration date will be inconsistent ?