I am trying to fetch 5 min candle data of Nifty and BankNifty options with OI. I have seen that OI in the last candle data doesn't get updated properly. I see this happening very frequently and its effecting my algo. Basically I am looking at a way to fetch OI of Nifty options every 5 mins. Which is the best way to do this ? I didnt expect such a inconsistency in historical data API that too so freqently.