Infrastructure and mining equipment maker Tata Hitachi has lined up Rs 250 crore investment over the next two years in West Bengal and Karnataka despite cost and margin pressure it is facing now, a top official said Wednesday. "We will invest Rs 250 crore in plants of Kharagpur in West Bengal and Dharwad in Karnataka over the next two years," Tata Hitachi managing director Sandeep Singh said Wednesday. He, however, did not elaborate on investment break-up between the two plants.