hello sir I am from India and I have already done this work I have helped my friend to gain 10k real audience for his betting tips channel. lets discuss in chat
I have the program ready and working. It can do what you exactly asked for but telegram won't all to add more than 200 members to a channel manually and if someone claim to add that's bogus. You could even verify it at telegram official site. What we can do is we can add members to a group. We can add members from other active and similar groups. I am already worked for a trading company to do exactly the same.