I am genuinely curious to know, what is your expectation here? He gave you credit in Github. He called it forever "indebted", which IMO is too much. You put out code under MIT license. MIT license means anyone can take the copy and fork it.

Why are you disappointed? Are you disappointed because a person of Indian origin did it better than you Or are you disappointed that because you wanted all fame but he took your code fork (still valid under MIT license) and did a better marketing than you with wrapper.

If you don't want people to use your use, put behind paywall. It is not difficult to understand.