Ameer Mousavi

Hi, 
Whether you want to receive notifications about your website (e.g. comment submit, user register, new core update and etc.) or you just want to share your posts/products in Telegram Channel; you are welcome to use this plugin. This will help you to integrate Telegram with WordPress.
This plugin based on <a href="http://notifcaster.com" rel="nofollow ugc">Notifcaster</a> service by Ameer Mousavi and allows WordPress site to send notifications to telegram.
Note: You have to turn on WordPress email notifications in order to receive Telegram notifications. Because in this version you will receive the body of any email that WordPrss is sending.
Please feedback and rate to make this plugin better.
Here is a <a href="http://ameer.ir/telegram-for-wp" rel="nofollow ugc">Persian Tutorial</a>

Telegram for WP

Allows WordPress site to send notifications to Telegram. You can also send files/posts/products to Telegram Channel.

EnzoCostantini55

Broadcast to Telegram is a very simple plugin that lets you automatically send post notification to your telegram channel via an admin BOT. It allows you to enroll multiple Telegram channels and you can choose, when sending, which channels make the notification to. It also allows you to choose which type of document is to be used with. It also gives the possibility, when a document is updated, to know which channels have already been sent a notification and edit directly the Telegram original message, marking it as updated by the (M) symbol.

Broadcast to Telegram

Allows WordPress sites to send notifications to a Telegram channel. It's possible send notification to multiple channels.

Telegram for WP vs Broadcast to Telegram