Hello Gulshan Kumar,
I have contacted to Amp support but they didn’t get to solve, they just guide me to play with settings.
Here is a website which is using AMP for each & every Single Post, but categories are non Amp. So when we check category URL in Amp version https://www.shoutmeloud.com/category/adsense/amp/ it’s redirects to non Amp version https://www.shoutmeloud.com/category/adsense/ & in my case when we check https://domain.com/entertainment/amp/ it’s redirects to “”Oops! That page can’t be found.“”
In short I mean to say it should be redirects from https://domain.com/entertainment/amp/ to non Amp version https://domain.com/entertainment/
I have send you my website link in private msg.