Auto Refreshes once in 10 minutes.
The 1 minute auto refreshing chart is put at
http://niftyindex.blogspot.com/p/nifty-intraday-chart-auto-refreshing.html and
http://interactivenifty.blogspot.com/
3month charts of Top scrips compared with Sensex and Nifty is given in this link
A Sensex30 list of charts compared with Sensex and Nifty is available at this link
A Nifty50 list of charts compared with Nifty is available at this link