GPT Infraprojects Limited, together with its subsidiaries, engages in the execution of civil and infrastructure projects in India and internationally. The company operates through Infrastructure and Concrete Sleepers segments. It engages in construction and repair of railways bridges, steel structures, structured steel fabrication, large-span steel superstructure, road building, and railway tracks. In addition, the company is involved in construction of turnkey construction, riverine bridges, deep-pile, pile foundations, heavy duty concrete pavements for airports, metro, and light rail systems. Further, it manufactures and sells concrete sleepers for mainline, curves, bridges, level crossings, points, and crossing. GPT Infraprojects Limited was incorporated in 1980 and is headquartered in Kolkata, India.