Cabinet Committee on Economic Affairs approved the project under Prime Minister Shri Narendra Modi's chairmanship
Project location: Bihar state, Khagaria-Purnia section of NH-31 and NH-231
Total length: 143.529 kilometers
Upgrade to 4-lane standard
Project mode: BOT (Toll)
Total project cost: ₹3936.05 crore
Civil cost: ₹2467.77 crore
Land acquisition cost: ₹290.16 crore
Includes development of 6.729 km greenfield bypass for Purnia city
Project will address geographical deficiencies, sharp curves, and congestion in urban areas of Khagaria, Bhagalpur, Katihar, and Purnia districts
Expected benefits: Increased average travel speed, reduced travel time by approximately 2 hours, improved road safety, fuel efficiency, and vehicle operating costs
Corridor connects major economic, social, and logistics nodes across Bihar
Connects to 5 PM Gati Shakti economic centers: 1 textile cluster, 2 mega food parks, 2 fisheries and marine food parks
Connects to 11 logistics hubs: 4 major railway stations (Khagaria, Bhagalpur, Katihar, Purnia), 1 airport (Purnia), 4 national highways, 2 national highways (listed as separate entries)
Connected major roads: National Highways - NH-27, NH-13, NH-131A, NH-231; State Highways - SH-95, SH-77
