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印度铁路内燃化开始于约20世纪50年代引入的美国ALCO公司的几批内燃机车。其中配装16缸251－B型发动机的2600马力WDM2型宽轨内燃机车成为印度铁路货运的主型。1987年成立的内燃机车设计开发组织对该型机车进行了许多卓有成效的改进。1994年4月，印度铁路的瓦拉纳西内燃机车工厂开始批量生产采用所有改进的WDM2型的两种变型机车：WDP2型客运和WDG2型货运。1995年4月，又生产出1台B0-B0、专门用于城间运营的WDP1型机车样车。印度铁路也研制出使用ALCO公司标定功率为2300马力、标准的251－B型柴油机的C0-C0内燃机车（只在一端设有一个流线型司机室，成对使用，推拉特别快车和通勤车，预计今后12个月将生产出10台）。
The internal combustion of India’s railways started with several diesel-powered ALCO locomotives introduced in the 1950s. Which equipped with 16-cylinder 251-B engine 2600 horsepower WDM2 wide-track diesel locomotive became the main rail freight in India. The diesel locomotive design and development organization established in 1987 carried out many fruitful improvements on the locomotive. In April 1994, the Indian Railways Varanasi diesel locomotive plant began mass production of two variants of the all-modified WDM2: Locomotive WDP2 and WDG2. In April 1995, another B0-B0 prototype was produced for the WDP1 locomotive operating between cities. The Indian Railways has also developed a C0-C0 diesel locomotive that uses ALCO’s standard 2,300 horsepower, standard 251-B diesel engine (only one streamlined driver’s cab at one end, paired use, push-pull special express and commuter cars, estimated The next 12 months will produce 10 units).