What does @ sign in telegram chat? What are Bots in Telegram Messenger mean?

Telegram Messenger apps latest updates (June 24, 2015) to 3.0 version makes interacting with bots super-easy. In most cases you won’t even have to type anything, because bots will provide you with a set of custom buttons. Telegram is about freedom and openness – the code is open for everyone, as is the API. Telegram is making another step towards openness by launching a Bot API and platform for third-party developers to create bots.

What does @ sign in telegram chat? or What are Bots in Telegram Messenger mean?

Bots are simply Telegram accounts operated by software – not people – and they'll often have AI features. They can do anything – teach, play, search, broadcast, remind, connect, integrate with other services, or even pass commands to the Internet of Things.

Bots can now provide you with custom keyboards for specialized tasks that could look like this for example:

Here are some sample bots that were built by the platform's beta testers this past weekend:

@ImageBot – send this bot a keyword and it’ll provide you with a relevant picture.
@TriviaBot – test your trivia knowledge or add to groups to compete with friends.
@PollBot – add this one to group chats to create polls.
@RateStickerBot – discover and rate new stickers.
@AlertBot – set a time and this bot will send you a reminder for anything you like.
@HotOrBot – find friends with this Tinder-like dating bot.
@GithubBot – track GitHub updates.
@StoreBot – find new bots and rate them.

Telegram beta testers needed only a few hours to build these bots – setting up a new bot is a breeze. Just generate a key with @BotFather and use a simple https API to control your bot. If you’re an engineer, check out our Introduction to bots for details.

Bots in Telegram will look different from human users: their chat and profile screens have a slightly different UI and they don't have access to all messages by default when added to groups.

Taking over the world
Once you've launched your bot, watch it spread. In Telegram, any forwarded message contains a link to its original sender. This means any message from your bot forwarded to a person or group is a messaging equivalent of a retweet – bots are viral.

Additionally, all bots have an Add To Group and a Share button in their profile. You can set up a description and link that will be used when people share your bot on Telegram or other platforms.

Bot profile featuring the Add to Group, Share and Help buttons.  Telegram.me link and short info to easily share a bot.

A typical link to a bot looks like this:

https://telegram.me/your_bot
Opening such a link starts a chat with that bot if you have Telegram installed. These links are easy to identify because all bot usernames must end in bot.

If the bot developer wants to pass their bot some additional info (like an auth key for example, see deep linking), the link might also look like this:

https://telegram.me/your_bot?start=value

The bots are coming

With this latest updates, you'll now see links like this in Telegram and elsewhere. Embrace them, they are bots! They are useful for – polls, news, games, integrations, e-butlers or cat images. Any dream can come true with bots.
See Also:
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Telegram Messenger Stickers - Telegram MOAR Stickers!
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Download Telegram messenger App for Android, iOs, Windows and Desktop 
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What is Telegram Messenger App?
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Telegram Messenger Tips and Tricks