Hey anusha2911,
Welcome to Apple Support Communities. I understand that you're unable to see the 'Screenshots' album in your Photos app on your iPhone. I like seeing my photos managed by folder as well and would like to help. Just to be sure, are you on the latest iOS 12.1? If so, you'll actually find your 'Screenshots' album by scrolling down to the 'Media Types' section.
Let me know what you see there.
Cheers.
Welcome to Apple Support Communities. I understand that you're unable to see the 'Screenshots' album in your Photos app on your iPhone. I like seeing my photos managed by folder as well and would like to help. Just to be sure, are you on the latest iOS 12.1? If so, you'll actually find your 'Screenshots' album by scrolling down to the 'Media Types' section.
Let me know what you see there.
Cheers.