You can create backup of your Telegram chats and messages and group chats from your Telegram desktop app. Remember it is only possible from desktop app. Once you create backup of your Telegram chats, messages and group chats, it will take atleast 24 hours for you to be able to download your backup. Also if you are logged in to your Telegram on your mobile app, you need to accept the confirmation message for the backup sent in by Telegram.
If you have any questions or queries, please leave them on the comment box below.
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