Is MTS an Indian company?

Excuse me, could you clarify something for me? I came across a mention of MTS and I'm wondering if it's an Indian company. I've heard of several companies with similar acronyms in the technology and finance sectors, so I'm a bit confused. Could you please provide some insight into whether MTS is indeed an Indian enterprise or perhaps it's based in another country? Any additional information you have about its operations or industry would be greatly appreciated.