Ministry of Road Transport & Highways
Cabinet approves Upgradation of the Khagaria-Purnea Section of NH-31 and NH-231 to the 4-Lane Standard (143. 529 kms) at a cost of Rs.3936.05 crore in Bihar on BOT (Toll) Mode
Posted On:
03 JUN 2026 3:33PM by National
The Cabinet Committee on Economic Affairs, chaired by the Prime Minister Shri Narendra Modi, today has approved upgradation of the Khagaria-Purnea Section of NH-31 and NH-231 to the 4-Lane Standard (143. 529 kms) in Bihar on BOT (Toll) Mode at a cost of Rs.3936.05 crore.
The proposed upgradation of the Khagaria-Purnea Section of NH-31 and NH-231in Bihar will address severe geometric deficiencies, sharp curves, and congestion in built-up areas across Khagaria, Bhagalpur, Katihar and Purnia district. An extended Greenfield Bypass of Purnea City of 6.729 Km length will be developed as part of instant project. The project will increase average travel speeds, reduce travel time to about two hours, and improve overall road safety, fuel efficiency, and vehicle operating costs, thereby enhancing regional mobility and socio-economic development.
The project provides seamless connectivity to key economic, social, and logistics nodes across Bihar. Additionally, the upgraded corridor will enhance multi-modal integration by connecting with 05 PM Gati-Shakti Economic Nodes (01 Textile Cluster, 02 Mega Food Park, 02 Fishing Seafood Park) and 11 Logistic Nodes (04 Major Railway Stations, 01 Airport, 04 NHs, 02 SHs), thereby facilitating faster movement of goods and passengers across the region.
Map of Corridor:
Appendix - I: Project Details
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Feature
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Details
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Project Name
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Upgradation of the Khagaria-Purnea Section of NH-31 and NH-231 to the 4-Lane Standard (143. 529 kms) in the State of Bihar on BOT (Toll) Mode
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Corridor
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Patna- Purnea
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Length (km)
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143.529
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Total Civil Cost (Rs in Cr.)
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2467.77
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Land Acquisition Cost (Rs in Cr.)
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290.16
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Total Capital Cost (Rs in Cr.)
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3936.05
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Mode
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BOT (Toll)
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Bypasses
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Greenfield Purnea Bypass of 6.729 Km length
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Major Roads Connected
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National Highways – NH-27, NH-13, NH-131A and NH-231
State Highways – SH-95 and SH-77
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Economic / Social / Transport Nodes Connected
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Airport: Purnea
Railway Stations: Khagaria, Bhagalpur, Katihar, Purnia
Economic Nodes: 01 Textile Cluster, 02 Mega Food Park, 02 Fishing Seafood Park
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Major Cities / Towns Connected
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Khagaria, Bhagalpur, Katihar, Purnia
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Employment Generation Potential
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32.59 lakhs person-days (direct) & 40.55 lakh person-days (indirect)
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