He is most famous for doing business in telecom. Telecom means things like phones and the internet. His company, Bharti Enterprises, has become one of the biggest groups of businesses in India.
His story of starting and growing his business is really interesting. He had a vision, which meant he had a big idea of what he wanted to do. He was also very innovative, which means he came up with new and smart ways of doing things. And he was strong when facing challenges; this is called resilience.
