Hi Abhishek Gupta,
No, unfortunately you cannot put Html content straight in xaml.
Here is what you can do:
1. Use a RadHtmlPlaceholder and put the html there. Please note that this control overlays an Html layer over the Silverlight application (putting the html in an IFrame). This does not work in out-of-browser mode and the interaction between the html content and the Silverlight appellation is difficult.
2. You can also use the RadGridView which is most suited for presenting tabular data. It also supports things like filtering, sorting grouping, etc. which help exploring the data.
You can find examples of these controls in our online demos here:
the Telerik team