Indian Railways has completed the doubling of the 38 km rail section between Darbhanga and Samastipur in Bihar. Train operations have already started on this new line, which aims to reduce travel delays and increase the capacity for more trains. The project was finalized after successful safety inspections and high-speed trials.
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What are the key details of the project?
The project involved doubling the track over a 38 km stretch to ensure smoother traffic flow. While different reports mention varying costs, recent data points to an investment of approximately ₹844 crore. The final phase of the work included the Rambhadrapur-Thalwara section, where a speed trial of 120 km/h was conducted by the Commissioner of Railway Safety (CRS) around May 15-16, 2026.
How will this benefit the passengers?
The new double line will lead to faster train operations and fewer bottlenecks on this busy route. Passengers can expect better connectivity and reduced waiting times. However, some operational restrictions remain in place for safety.
| Feature | Details |
|---|---|
| Total Length | 38 Km |
| Project Cost | ₹844 Crore |
| Max Trial Speed | 120 Kmph |
| Current Bridge Limit | 50 Kmph |
| Key Benefit | Higher Capacity & Less Delay |
What work is still pending?
Although trains are running, some passenger amenity works are still ongoing. This includes the construction of Foot Over Bridges (FOB) to help passengers cross tracks safely. Additionally, there is a focus on accelerating the construction of Road Over Bridges (ROB) in the Darbhanga area to improve road traffic.
Frequently Asked Questions (FAQs)
What is the total length of the Darbhanga-Samastipur double line?
The total length of the doubled rail section is 38 km, which is now open for train operations.
Is there any speed restriction on the new line?
While the track was tested at 120 km/h, a speed limit of 50 km/h is currently applied on some bridges.



























