Muzaffarpur–Gorakhpur main line

The Muzaffarpur–Gorakhpur line via Narkatiaganj and Motihari is a railway line connecting Muzaffarpur in the Indian state of Bihar to Gorakhpur in Uttar Pradesh. The 309.720 km line passes through the plains of North Bihar and the Gangetic Plain of Bihar and Uttar Pradesh.

Speed limit
The "Muzaffarpur–Gorakhpur line via Motihari" route is not an A-Class line of Indian Railways. So maximum speed is restricted to 110 km/h as there is a single BG electrified line between Muzaffarpur Junction and Gorakhpur Junction.

Stations
There are 50 stations between Muzaffarpur Junction and Gorakhpur Junction.

Future
The foundation stone of doubling of railway line and electrification was laid by the hon'ble Prime Minister Modi on his trip to Motihari on the centenary celebration of the Champaran Satyagrah in 2018. Modi flags off train, kick-starts track doubling, dedicates loco unit to nation in Bihar. The doubling work survey for Muzaffarpur–Gorakhpur main line was sanctioned in the Railway Budget of 2012–13.

The East Central Railway zone also applied for the electrification of the following sections to the Ministry of Railways (India) for the Rail Budget 2015–16.
 * Darbhanga–Samastipur 81 km
 * Samastipur–Raxaul 231 km
 * Valmikinagar–Muzaffarpur 286 km
 * Mansi (Khagaria)–Katihar 172 km

Sidings and workshops

 * Kanti Thermal Power Station, Muzaffarpur
 * Bharat Wagon Engineering Limited, Muzaffarpur
 * Major Freight Terminal at Narayanpur Anant
 * IOC Indian oil Petroleum Siding
 * Bharat Petroleum Siding, Narayanpur Anant
 * FCI Siding at Narayanpur Anant