Dear Tejas..
And they told easily "we got LTP from exchange in every sec & O,H,LC,V get in every 1 min end"..
so we updated every sec LTP data to feed FYERSWEB and it be converted in candle format in chart only so maybe miss "HIGH/LOW" value not match with Chart & no back-fill provision in FYERSWEB/CHART..So that we use only LTP for chart purpose..(so what use in 1 min "O,H,L,C,V get from Exchange)
And they told easily "we got LTP from exchange in every sec & O,H,LC,V get in every 1 min end"..
so we updated every sec LTP data to feed FYERSWEB and it be converted in candle format in chart only so maybe miss "HIGH/LOW" value not match with Chart & no back-fill provision in FYERSWEB/CHART..So that we use only LTP for chart purpose..(so what use in 1 min "O,H,L,C,V get from Exchange)
Exchange provides us data packets every second. In each packet, exchange sends us many values but the most important ones being ltp, ltq, day open, day high, day low, total volume traded for the day, bid prices, bid quantities, ask prices, ask quantities.
In the daily candle timeframe, the current day's OHLCV is based on the corresponding values from the last data packet received from the exchange for that particular symbol.
But the manner in which the intraday candles are created is different. Since exchange does not provide minute by minute candle data, we need to create the candles based on the ltps which have been received in that particular time period. For example, 10:15 candle will be created in the following manner
Open: First LTP value received after 10:15:00
High/Low: The highest and lowest LTPs received between 10:15:00 and 10:15:59
Close: The last LTP value received till 10:15:59
Volume: VTT from the last packet as on 10:15:59 - VTT from the first packet after 10:15:00
*VTT = Volume Traded Today
Now, let us say that 10:15 candle was also when the day high was formed. There may be a circumstance wherein, the exchange has not sent us the LTP which reflects the day high (this can happen because it is not feasible for the exchange to send tick by tick data). So in this case, the 10:15 candle high value may not match the day high value. But the daily timeframe chart will reflect the day high correctly as per the exchange.
Hope this clarifies.