Billionaire Elon Musk’s Tesla Inc will establish an electric-car production system in the southern Indian state of Karnataka, according to a federal government document seen by Reuters on Saturday. “The U.S. company Tesla will be opening an electric cars and truck producing unit in Karnataka,” the state federal government said in a short statement. The declaration was part of a more comprehensive file outlining the highlights of India’s budget plan to its individuals in the regional language of Kannada.