Mumbai, Aug 13 (ANI): Tata Motors Limited began selling its new passenger car, its first offering in four years, in a bid to regain market share and plug losses in its domestic business, which was also hit hard by a slowing economy. The car, named Zest, is a compact sedan built on a new platform and, in a departure from previous models, boasts user-friendly features such as touch screen control panels. Shares of Tata Motors Limited, India's biggest automaker by revenue, jumped more than six percent after strong sales of its luxury Jaguar and Land Rover vehicles helped triple the company's first-quarter net profit. Operating margins at its Jaguar Land Rover (JLR) unit rose to 20.3 percent from 15.8 percent a year ago.