@Hitesh_Bhasin Thanks for reporting about trailing slash issue. I had forgotten about it.
Well, not too afraid this is a minor and harmless problem. It automatically forces redirects to trailing slash path with correct canonical.
A tip: If you want to check something deeper, please append the query string to the URL.
You might have noticed carefully; the AMP plugin doesn't respect WordPress permalink settings correctly. I had said same to its respective plugin developer, somehow they also agreed with this point.
In my blog, before I had completely removed trailing end slash, but it was causing redirect loop after activating AMP. Indeed, just for AMP I had to switch back to normal mode to
FYI: Did you noticed this one? Title is showing different in AMP