IRB Infrastructure Developers Limited is an Indian highway construction company. It was incorporated in 1998, with its headquarters in Mumbai. It is part of the IRB Group and headed by Virendra Dattatraya Mhaiskar. The company primarily operates build-operate-transfer road projects. Currently, it has about 3,404 lane km operational and about 2,330 lane km under development. Among its notable projects are the Mumbai-Pune Expressway and the Ahmedabad-Vadodara Expressway. Wikipedia