Historical Options data for backtesting

Hi All,

Can someone suggest some good/reliable sources for Nifty/BankNifty options historical data based on their experience ?
Also, does the data include OI as well?

  • aadityaj11
    If you get the data, do let me know. I am also interested. We can share the cost if required.
  • jrdinesh1996
    You can purchase from True Data or Global Data feed. I Purchased recently only If you want i can share and split the cost.

    DM if interested
  • kiranMaya
    @jrdinesh1996 do they provide 20 depth ticks?
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