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To lock a chat go to Settings->Privacy and Security->Passcode Lock and enable it. Once you create a passcode and enable it, you will be able to lock and unlock your chats by tapping on the lock icon at the top right of the app. Open Telegram chat Private Chats in Telegram Settings

Another useful feature is “send without sound”. It is rather self-explanatory: you can message friends freely when you know they are attending an important meeting, studying, or sleeping. Recipients will get a notification as usual, but their device won’t make sound, even if it is in general mode. If you don’t want messages in your secret chats to hang around forever, Telegram lets you set self-destruct timers to permanently remove them. After a message is received, it remains in the chat for a predetermined period — you can choose times between one second and one week – before disappearing. Does it ever happen that you send a message, and within a few seconds you find out a glaring typo? Well, there is an edit button to save you on Telegram, but not so much on Twitter. All you have to do is select the message and tap on the “Edit (pen)” icon at the top and you can easily edit the message. However, it will show you an “Edited” label after you have made the changes. Also, there are no time-bound restrictions for editing messages on Telegram. You can only edit messages up to 48 hours of sending them (forever if the messages are posted in your “Saved Messages” chat). Chat Folders is one of the best Telegram tricks that you should know and utilize to your maximum advantage. We follow so many channels and groups on Telegram of different kinds, not to mention the individual chats that go into the mix. Having all these chats in one panel makes things much harder to declutter and make sense of. So to solve this issue, Telegram has brought something called “Chat Folders”. This allows you to categorize your chats into different labels and Telegram sort things out for you. As a result, Telegram gets super clean and much easier to manage. I love it!

Finally, if you don't want to disturb the other person, choose Send without sound to silently deliver the message to the other party without them getting a notification. While WhatsApp remains the king of instant messaging in terms of sheer user base, Telegram is one of its main competitors and for good reason. The app offers speed, security, and simplicity, and is a strong WhatsApp alternative. Whether its due to WhatsApp being a Meta-owned company, or the privacy policy updates, or anything else, a lot of users have switched to Telegram over the last few years. If you’re on of them, here are 35 cool Telegram tricks to let you make the most out of the messaging app. You’ll have to be especially concerned with privacy to want to do this — it means you’ll never have a chat log — nonetheless, it’s a nice option that Facebook Messenger, WhatsApp, and WeChat don’t have. Banned: How PFI morphed into a stridently militant outfit over 3 decadesPremium

Read: 8 Most Common Encryption Techniques To Save Private Data Lock Your Chats 1b