Tunneling work for Patna Metro Corridor-2 has officially resumed between Moinul Haque Stadium and Rajendra Nagar Terminal. The project was on hold since December 2025 because it needed a No Objection Certificate from Indian Railways. Following discussions between engineers and railway officials, excavation started again around March 12, 2026. This underground section is a critical part of the city transport network that aims to reduce traffic congestion.
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Why was the Patna Metro work halted and what changed now?
The construction was stopped because the metro line passes directly under the busy Patna-Howrah main line at Rajendra Nagar Terminal. Indian Railways required a No Objection Certificate (NOC) to ensure the tunnel would not interfere with any future expansion of the terminal infrastructure. In early March 2026, the railways granted the necessary clearance after reviewing the alignment and safety plans. Larsen and Toubro is currently managing the design and construction of this underground stretch under the supervision of the Delhi Metro Rail Corporation.
Key features of the Rajendra Nagar underground metro station
The Rajendra Nagar station is designed to be a dual connectivity hub for the city. It allows passengers to switch easily between the Indian Railways network and the metro system. Safety regulations require a specific gap between the active rail lines and the metro tunnel to maintain structural integrity.
- The station is being built 21 meters below the ground level.
- A soil cushion of at least 15 meters is maintained between the railway tracks and the metro tunnel.
- Modern Tunnel Boring Machines are used to ensure safe excavation without disturbing train movements above.
- The Rajendra Nagar station is projected to be one of the deepest metro stations in the country.
Project costs and completion timelines for Patna Metro
The overall Patna Metro project involves significant investment from the state government and international agencies. The underground section of Corridor-2 is expected to be ready for use by the end of 2026.
| Project Detail | Estimated Value or Date |
|---|---|
| Total Project Cost | ₹13,365.77 crore |
| Underground Section Completion | End of 2026 |
| L&T Corridor-2 Contract | ₹1,989 crore |
| JICA Loan for Financing | ₹5,520.93 crore |
| Priority Segment Operations | October 2025 |