Telegram API Multi-Threaded Inviter

I am looking for Telegram expert who have done similar projects in the past.Intermediate or beginners please dont bother i do not have time to explain over and over again.

So this is the requirements for the project:

Inviter script must have some user friendly interface (HTML or app interface like Java or similar)

Inviter script will take inputs of multiple Telegram API’s (accounts) total from 5 or 10 accounts

a) API ID
b) API Hash

All API’s (Accounts) would be added to target channel/group as admins

Script will read Users.txt files where all accounts to be invited will be listed in the following format:

@jacksparow
@did738
@simao79
@wiro

…

The user file will contain anywhere from 1000-2000 users thats why i need script to be multithreaded and add Users from 10 Telegram API’s simultaneously because Telegram has limit on how many users you can add.

You can offer your workaround if you know which would allow to add users Faster?(Perhaps using web.telegram.org/a interface or other ideas)