Telegram Messenger app for Windows phone updated with new features . The latest app version is 1.23 and it brings some new features including the support for up to 5000 members in a super group. From now you can convert any of your groups to a super group easily.
The feature already there in desktop version, now it hits phone. Download the updated version from below attached link.
[appbox windowsstore 9wzdncrdzhs0]
Thanks to Priya for the tip.