Tesla Inc. is set to open its first showrooms in India in July, people familiar with the discussions said, kicking off formal operations in the world’s third-biggest automobile market as the Elon Musk-led firm hunts for growth amid falling sales in Europe and China.The electric vehicle giant’s first set of cars have arrived in the country — Model Y rear-wheel drive SUVs shipped from Tesla’s China factory, according to the people, who asked not to be identified as the information is private, as well as documents seen by Bloomberg News. The Model Y is the world’s largest selling electric car.Tesla is set to open its first showroom in Mumbai as early as mid July, which will be followed by one in New Delhi, according to the people. It has also imported Supercharger components, car ac