The 10th Auto Expo will open in New Delhi on Tuesday with over ten global launches and previews of small and green cars by the likes of Honda and Toyota. Society of Indian Automobile Manufacturers President Pawan Goenka told reporters that during the week-long event, billed as the world's biggest in terms of footfall, 50 new launches, which includes variants of different existing models, will be held. A total of 2,105 participants, including 800 from overseas, will be taking part in the expo showcasing their products that is expected to attract nearly 20 lakh visitors. While the Tata Nano was the star attraction of the last auto expo, this time the company will be launching four new models in different vehicle categories. Maruti Suzuki India will launch its new multi-purpose vehicle Eeco, while Volkswagen will introduce much-awaited Polo in the Indian market.