Data missing

I am fetching data using below mentioned code and the data received is completely fine. The only issue is, every hour, 59th minute candle's OHLC is missing - 9:59, 10:59, 11:59, 12:59, 1:59 and 2:59. Can't find a reason for the same. Please help.

data = objKite.GetHistoricalData(token.ToString(), DateTime.Now.Date.AddHours(9).AddMinutes(15).AddDays(-3), DateTime.Now, "minute", false, false);

DateTime.Now.Date.AddHours(9).AddMinutes(15) ==>from==> Means data start from 3 day back from 9:15 am

DateTime.Now ==>to==> Means current time
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