AJR Infra and Tolling Limited operates as an infrastructure project development company in India. The company develops roads and expressways, ports, hydro power, airports, railways, power transmission lines, and special economic zones, as well as undertakes urban infrastructure, water and wastewater management, and agricultural infrastructure projects. It also provides project advisory services; and operation and maintenance services for the transportation sector. The company was formerly known as Gammon Infrastructure Projects Limited and changed its name to AJR Infra and Tolling Limited in August 2021. The company was incorporated in 2001 and is based in Mumbai, India.