Get latest articles and stories on Latest News at LatestLY. IRB Infrastructure Developers on Friday said that its associate IRB Lalitpur Tollway has signed a concession agreement with the NHAI for tolling and operations and maintenance of the Lalitpur-Lakhnadon stretch of NH44 in Madhya Pradesh. Latest News | IRB Infra Arm Inks Pact with NHAI for Tolling Proj in MP.