Thank you Pratap ji. Also, I am trying to judge the intraday trend of Nifty... Have observed that around 75% cases, we can estimate the movement by tracking NIfty upto 10 AM. But this is based only on last month's intraday charts, which I downloaded each day. Is there a site which can provide intraday charts for historical dates? What I could get was the candle sticks only, which doen't show the transient behaviour during daytime. If I can get this historical intraday charts, I'll document the success rate in tracking and share in this forum. Kindly suggest where these charts are available.