People are brought in from India just because they are South-Indians and speak a particular languages like Telugu, Tamil and to some extent Malyalam and Kannada.People in particular from Andhra Pradesh, Telangana and TamilNadu are paying hundreds of thousands of dollars to U.S universities to come on student visa in U.S and then complete M.S in U.S. They know that after completing M.S they are guaranteed to get job in some U.S company because U.S companies prefer H1-B workers.
The reason for that is the management has become all Telugu and Tamil speaking in majority of U.S companies and they want to hire Telugu and Tamil speaking people. People from India who speak other languages like Punjabi, Gujarathi, Marathi also face heavy discrimination in U.S from the Telugu and Tamil speaking people.
This is the survey on Indian IT discrimination. This mini-site is broken down into just a few tabs.