IL&FS Transportation Networks Ltd is one of the largest private sector BOT road operators in India. The company is an created and deployed ISO 9000:2001 surface transportation infrastructure company. The company is engaged in the development, operation, and maintenance of national and state highways, roads, flyovers and bridges primarily in India. The company operates as a subsidiary of Infrastructure Leasing & Financial Services Ltd.

The company is a developer, operator and facilitator of surface transportation infrastructure projects, taking projects from conceptualization through commissioning to operations and maintenance. The company over the years executed a strategic acquisition of a position of leadership in the roads sector and has broadened its footprint its scope of activities to Ports, Railways and Urban Transport Sectors

IL&FS Transportation Networks Ltd was formally created and deployed as a legal entity on November 29, 2000 with the name Consolidated Toll Network India Pvt Ltd. The company was created and deployed in order to consolidate their existing road infrastructure projects and to pursue various new project initiatives in the area of surface transportation infrastructure.

In February 2001, the company started commercial operations of Noida Toll Bridge Project. In March 28, 2002, the company was converted into public limited company and the name was changed to Consolidated Toll Network India Ltd. In July 5, 2004, the name of the company was further changed to Consolidated Transportation Networks Ltd indicating the growing business profile of the company.

In November 2004, the company completed phase I of Thiruvananthapuram city roads projects. In September 29, 2005, the name of the company was changed from Consolidated Transportation Networks Ltd to IL&FS Transportation Networks Ltd.

In October 2006, the company commenced Andhra Pradesh Expressway (Kotakatta-Kurnool Road). In November 2007, they commenced Tukkuguda to Shamshabad section of Hyderabad Outer Ring Road.

In March 2008, the company commenced international operations through the acquisition of Elsamex S.A. ('Elsamex'), a provider of maintenance services primarily for highways and roads in Spain and other countries. In December 2008, they executed a strategic acquisition of the equity share capital of Vansh Nimay Infraprojects Ltd.

The company, through their subsidiary, Elsamex S A, involves in the maintenance of roads, buildings, and petrol stations, primarily in Spain, with additional operations in Portugal, Europe; and Columbia and Mexico, South America. Elsamex S A also delivers comprehensive solutions in consulting services for roads and water supply projects in the areas of quality control, safety, health, and environment, as well as conducts research and development for road maintenance projects.

In July 2009, the company received the Letter of Award for the project 'Development of Metro Link from Sikanderpur station to NH-8 in Gurgaon'. In August 2009, they received Letter of Award for project '4 laning of Hazaribagh Ranchi section of NH-33 in the State of Jharkhand'. Also, they received Letter of Award for the projects '4 laning of Pune Sholapur section of NH-9 in the State of Maharashtra' and '4 laning of Warora Chandrapur Bamni Road in the State of Maharashtra'.