I have the tool called siteanalytix. which shows the web analytix report for web sites.
Like that i want to develop a app with splunk like Web Intelligence. May i know how to develop this and from where i to have start?
The Sideview Utils app is a very popular tool for Splunk app developers. You should certainly consider it, as it provides a lot of enhanced capabilities. It also can be downloaded from Splunkbase. Read the license carefully if you want to distribute your app.
In addition, I think you would find it very worthwhile to take the class: Developing Apps with Splunk
There are prerequisites, but you can find out more at the link. [Disclaimer - I work at Splunk as an Instructor. But I hope that others would agree that the class is worthwhile.]