Auto-Delete Messages you can enable an auto-delete timer in a | KeralaGram [Official]®

Auto-Delete Messages

you can enable an auto-delete timer in all Telegram chats, which will automatically erase messages for all participants either 24 hours or 7 days after sending.
Auto-delete only applies to messages sent after the timer is set, earlier messages will stay in the chat history. Unlike in Secret Chats, the countdown starts when messages are sent, not read.

To enable the timer on Android, tap ⋮ > Clear History then choose a duration.
On iOS, press and hold a message, tap Select > Clear Chat (top-left) > Enable Auto-Delete.

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