Tap the Settings app icon, which resembles a white gear on a light-blue background. On Samsung Galaxy phones, the Settings app icon resembles a stylized, white gear on a purple background. It's near the top of the menu, though you may have to scroll down to see this option on some phones. Doing so opens a list of your currently installed apps. On some phones (such as a Samsung Galaxy), this menu just says Apps. Scroll through your available apps until you find the Facebook Messenger app, then tap it. You may have to tap See all apps or App info before you can find the Facebook Messenger app. It's usually near the top of the screen. If you just see DISABLE here, tap it instead. This will remove the Messenger app from your Android.
सेटिंग्स खोलें: Apps & notifications पर टैप करें: फेसबुक मैसेंजर एप चुनें: UNINSTALL टैप करें: पुष्टि करने का पूछे जाने पर UNINSTALL या OK पर टैप करें: