Clarification Needed

How to interpret NSE option chain data ?
For 18500 CE
OI is 126874 in NSE website where as
Its 63.4 lakhs in Sensibull Option Chain.


Thank You

NSE reports OI in lots, while on Sensibull it is total quantity ie. Lots * Lot Size (126,874 * 50 = 6,343,700).

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