Hi @manikanthar1295 ,
I faced some issue with the SDI those are:
1. Problem with the CDN cache and Edge Side include: It will not work as expected in some scenario, so make it work you will have to do some extra config or set TTL for a fragment of the page, that was included as part of SDI.
2. SDI used add some CSS ultimately that will have some impact on the existing site's css and look and feel of the page.
3. I only used it with apache asi that worked as expected in all scenarios.
Hope this will help.
Umesh Thakur