"Every third car produced in India is from in and around Chennai," says Ranjan.
Similarly, the region will see the manufacture of around 350,000 commercial vehicles a year by the end of 2010-11.
In 2008-09, 560,000 passenger cars were manufactured, accounting for 30.6 per cent of India's total production.
Haryana has an installed capacity of around 4.8 million vehicles (1.2 million for Maruti and 3.6 million for Hero Honda).
Harley Davidson is also setting up an assembly unit at Bawal in Haryana, which will become operational by the first half of 2011.
However, the company has not yet furnished details on its investment or production plans.