Hello Sonu Kapoor,
Thank you for using our services. We have replied to you in the support thread you had opened, you can track our response there. For your conveninece I'm pasting the reply below as well:
"There is no actual form. We use definitions which are complex elements created by several controls, most of them are of type FieldControl
The new products or content item is saved through web services. In the SDK there should be WCF service and data layer - ORM data class which has methods that commits the transaction.
You can take a look at this post which provides some basics about the architecture
the Telerik team
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