IRB Infrastructure Developers has won two road projects worth Rs 3,465 crore from the National Highways Authority of India (NHAI). The projects in Tamil Nadu are to be built on hybrid annuity mode, according to the company. IRB Infra has emerged as a preferred bidder for two hybrid annuity projects under NHDP Phase IV in Tamil Nadu. The work includes four-laning of Poodiankuppam-Sattanathapuram section of NH-45A and four-laning of Puducherry-Poondiyankuppam section of NH-45A (new NH-332).