Hi Raju,
The endpoint you’ve got there is not a supported, public API. It’s used by the embedded timeline widget to render content, and is subject to change in terms of format, content (both JSON and HTML), arguments and even existence at any time without notice. You should not use it in your applications or deliver anything to clients depending on the response of this endpoint.
If you want to do your own rendering of Tweets that’s fine, but you should proxy it via your own authenticated call to the API for data.
Ben