Hi @S2023,
The answer I have is the same shared by our team earlier - “Daily OHLC includes pre and post market session. So if Low or high is made during that time, They will be considered as day’s high low while intra day OHLC is only about market session. Close of daily candle is also post market close and not LTP of 3:30PM.”
Because this is a common question, we have a dedicated post on how charts work - Charts on Dhan: What happens behind the scenes and how Charts work exactly?