How to Backup WhatsApp Messages and Group Conversations

Step 1: Go to "Settings"

Step 2: Select the option “Chat Settings”

Step 3: Now tap the option “Backup conversations”

Step 4: Now the backup process will start which will last for few seconds and the backup file will be stored in the phone memory.

After taking the backup, even if you uninstall and again install WhatsApp, it will automatically ask for the option to retrieve the backup files (messages/conversations) after the installation process.

Also there is another option where you can email any particular friends or groups messages. You can get this option at Settings -> Chat Settings -> Email Conversation