The company commenced manufacturing of construction equipment in 1961, as a division of TATA Engineering and Locomotive Company, now TATA Motors at its Jamshedpur plant. In 1984, it entered into a technical collaboration with HCM, Japan for manufacturing hydraulic excavators.  In 2000, HCM acquired a 20% stake in JV, which increased to 40% in 2005 and currently stands at 60%. The company offers the largest range of Hydraulic excavators under a single brand in India. It currently has manufacturing plants at Jamshedpur (Jharkhand), Khargapur (West Bengal)and Dharwad (Karnataka).