The Bihar Sampark Kranti Express, operating between New Delhi and Darbhanga, split into two parts while traveling between Karpurigram and Khudiram Bose Pusa stations in the Samastipur railway division. An investigation revealed that the locking pin, which connects the coaches, was missing, indicating it wasn't properly attached during the train's departure...
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from Delhi. This resulted in the coupling unlocking due to a jolt, splitting the train. Two railway officials, a senior section engineer and an MCM, have been suspended pending further investigation. The investigation team, including senior officials, confirmed that the locking pin was never attached. The incident happened on July 29th, when the train was traveling from Darbhanga to Delhi. The train had already departed from Darbhanga on Monday and was heading back to New Delhi.

On Monday, the Bihar Sampark Kranti Superfast Express travelling from Darbhanga to New Delhi experienced a coupling failure near Repura Gumti, disrupting the Samastipur-Muzaffarpur up line for over four hours. This caused significant delays for several trains including the Darbhanga-New Delhi Clone Express, the Vaishali Superfast, the Shaheed Express to Amritsar,...
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and the Gondia Express from Barauni to Gondia. The Bihar Sampark Kranti Superfast arrived in Muzaffarpur 3.54 hours late, the Darbhanga-New Delhi Clone Express 4.29 hours late, the Barauni-New Delhi Clone Express 4.24 hours late, and the Jayanagar Amritsar Shaheed Express 1.25 hours late. Passengers faced significant delays at the station and were provided train status updates every 15 minutes.

A near-miss train accident occurred in Samastipur, Bihar, involving the Bihar Sampark Kranti Express, traveling from Darbhanga to Delhi. Two carriages, including the engine, separated from the rest of the train between Pusa and Karpurigram stations. Passengers felt a strong jolt when the coupling failed, causing panic, but fortunately, no injuries...
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were reported. The train driver managed to stop the detached carriages, reconnected them, and brought the train to Pusa station at a slow pace. Railway officials are investigating the incident, but have not yet revealed the cause of the separation.

An express train traveling on the Samastipur-Muzaffarpur rail line in Darbhanga suddenly separated into two parts. The engine and one coach detached from the rest of the train and moved forward about 100 meters. The loco pilot quickly applied emergency brakes, causing a commotion among passengers who disembarked the train. ...
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The loco pilot and guard immediately informed the railway team, which responded and took further action. Fortunately, the quick thinking of the driver averted a major accident. The railway authorities appealed for calm amongst passengers. The train was brought back by the loco pilot and the engine was reconnected to the coaches. The train was then stopped at Pusa station for investigation. The DRM of Samastipur Railway Division, Vinay Srivastava, has ordered a senior DST to investigate the incident, which he stated is a case of malfunctioning coupling. The incident caused a delay of over an hour, and the train remained at Pusa station until 12:30 PM.