The current price of COAL INDIA LTD is 429.55 INR — it has fallen 1.50% in the past 24 hours.
Open interest is the number of contracts held by traders in active positions — they're not closed or expired. For COAL INDIA LTD this number is 0. You can use it to track a prevailing market trend and adjust your own strategy: declining open interest for COAL INDIA LTD shows that traders are closing their positions, which means a weakening trend.