<ul data-eligibleForWebStory="false">NHAI plans to bid out 124 highways and expressways projects worth Rs 3.4 lakh crore in 2025-26, totaling 6,376 km in length.Projects will be executed under three modes: Build Operate and Transfer, Hybrid Annuity Model, and Engineering Procurement and Construction.Specific projects like Gorakhpur - Kishanganj - Siliguri and Tharad-Deesa-Mehsana-Ahmedabad will be taken up for bids by NHAI under different models.Concession period for projects varies based on the mode, with maintenance responsibilities assigned to concessionaires.