Both firms have an equal equity stake and the joint venture hopes to ride on Tata Motors dominance in India's bus and truck market.
Dutch Lanka's Kelaniya plant currently makes a range of trailers, with overseas buyers accounting for around 60 percent of total sales each year.
The company's expansion drive got a boost last week, when global private equity investment firm Aureos Capital, and local investor Dr. Siva Selliah pumped in 1.3 million dollars and 700,000 dollars respectively through a private placement.
Dutch Lanka plans to spend around a million dollars each to scale up their Sri Lankan plant and set up a production line in Pune, India.
Locally, Dutch Lanka mak