Mukesh kumar: You need to get Thingworx Studio installer ( Windows or MAC) to get it installed. Once you get enrolled to the ThingWorx Studio Trial program or get commercial licence then you can get access to Thingworx Studio installer.
Minimum requirement for Thingworx Studio :
Suggest you to get your self registered using the below URL :
There is a getting started guide which is very useful for someone exploring Thingworx Studio:
On registering to Trial program you will also get access to great collection of video tutorials and exercises as shown in snapshot below:
Hope this help and get you started.