Telegram software to send BULK messages

There is an app called Telegram:\r\n[login to view URL]\r\n\r\nThey offer official API:\r\n[login to view URL]\r\n\r\nThere is an open source web version available on github:\r\n[login to view URL]\r\nVisit Webogram CLI on GitHub:\r\n[login to view URL]\r\n\r\nI need you to modify the script to fetch phone numbers (100,000 +) from CSV file and send message in bulk to those numbers, make sure:\r\n\r\n- Verify those number got Telegram\r\n- Able to Send Photos and Videos\r\n- Ability to see that messages got delivered and read (Reporting)\r\n\r\n\r\nThe most important thing that you need to verify, will this script be able to broadcast message to 100,000 numbers at once? if YES then how much time it will take for a single text/photo message?\r\n\r\nNOTE:\r\nI have listed this project twice and got no serious coder, please make sure to read the documentation mentioned above and provide me with:\r\n\r\n- How will you modify this code to run on high scale (sending to 100,000 + phone numbers)?\r\n- How much time needed to send to 100,000 numbers from a regular web server?\r\n- How much time you need to execute this task?\r\n- If you ever worked with Telegram app, share your work.