On Wednesday, Electric Locomotive Factory, Madhepura dedicated 6 sets of country's most powerful locomotive to nation. The Alstom Company of France and Indian Railways jointly developed the country's most powerful locomotives WAG-12 in Madhepura under Make in India initiative. After getting approval from the CRS & Railway Board, now the locomotive will be seen running in the Dedicated Freight Corridor. Being fully air-conditioned, the driver of the locomotive will not face any problem even in hot summer days.

Along with a capacity of 12000 horsepower, it is the most powerful locomotive of the country that can haul freight trains weighing up to 6000 tonnes. 6 locomotives were flagged off from Madhepura Locomotive Factory, which was diverted from Saharsa towards Lucknow route on Thursday. The 12,000 horsepower locomotive have a maximum speed of 100 km per hour. This powerful locomotive has been developed in a joint venture between Indian Railways and French Company Alstom. After the trial and testing of the second locomotive, which rolled out from ELF, Madhepura for Saharanpur in November, RDSO and CRS given approval for its operation in February.
Indian Railways and Alstom of France manufacturing the country's most powerful locomotives at Madhepura Electric Locomotive Pvt. Ltd (MELPL). The new twin Bo′Bo′+Bo′Bo′ designed WAG-12 a three phase, twin-section electric freight locomotive consisting of two identical sections, each of which rests on twin-axled bogies. The first locomotive of the class was initially expected to enter service on 28 February 2018. However, the locomotive was launched by Prime Minister Narendra Modi in Madhepura, Bihar on 10 April 2018.

According to a statement issued by the Ministry of Railways, the electric locomotive has undergone considerable changes as suggested by the RDSO and was subsequently inspected at the Madhepura manufacturing unit and locomotive manufacturing was approved from the factory. Alstom will supply 10 locomotives in FY 2019-20, 90 locomotives in FY 2020-21 and 100 locomotives per year after March 2021 as per the recovery plan.

Development of the locomotive began after Indian Railways signed a record deal in November 2015 with Alstom for the development of 800 high-horsepower electric freight locomotives. The cost of production was estimated to be ₹19,904 crore (equivalent to ₹240 billion or US$3.4 billion in 2019).