@Sunny I am planning to build a support website for my product and like the way SmartAdmin Support website is designed. Is it built on any opensource framework or built in-house? If you can share some technical details it would be helpful.
ganu81 the Support website is based on https://flarum.org/ with some in-house modifications and optimisations. You should be able to replicate the look-and-feel though with the package out of the box.
Hope this helps,