It looks like there aren't any issues with the 1-minute data for RELIANCE. Could you please share the specific data that you believe is different or incorrect? That way, I can assist you more effectively.
@Nivas , I’m attaching a screenshot of the incorrect data I received. In one screenshot, you’ll see the time range I’m using to fetch the data, and in the second, I’ve shared the actual data that was fetched. If you look at the 2nd, 3rd, and 4th rows of both the files, you’ll notice a discrepancy in the number of rows between the NSE and BSE downloaded CSV files.