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The Indian Railways primarily operates a fleet of electric and diesel locomotives, along with several compressed natural gas (CNG) locomotives. Steam locomotives are operated on a few World Heritage Sites and also run occasionally as heritage trains. A locomotive is also known as a loco or more popularly as an engine. The country's first steam locomotive ran on the Red Hill Railway from Red Hills to the Chintadripet bridge in Madras in 1837.
The Indian locomotive class WDM-2 is a class of diesel-electric locomotive that was developed in 1962 by American Locomotive Company (ALCO) for Indian Railways. The model name stands for broad gauge (W), Diesel (D), Mixed traffic (M) engine, 2nd generation (2). They entered service in 1962. A total of more than 2,700 WDM-2 was built at ALCO and Banaras Locomotive Works, Varanasi between 1962 and 1998, which made them the most numerous class of mainline diesel locomotive until its successor the WDM-3A.
The Indian locomotive class WAM-4 is a class of 25 kV AC electric locomotives that was developed in 1970 by Chittaranjan Locomotive Works for Indian Railways. The model name stands for broad gauge (W), alternating current (A), mixed traffic (M) locomotive, 4th generation (4). They entered service in March 1971. A total of 500 WAM-4 were built at CLW between 1970 and 1983, which made them the most numerous class of mainline electric locomotive till its successor the WAG-5.
The Indian locomotive class WDM-4 is a class of diesel-electric locomotive that was developed in 1962 by Electro-Motive Diesel for Indian Railways. The model name stands for broad gauge (W), Diesel (D), Mixed traffic (M) engine, 4th generation (4). They entered service in 1962. A total of 72 WDM-4 locomotives were built between 1961 and 1962.
The Jolarpettai–Shoranur line connects Jolarpettai, on the Chennai Central–Bangalore City line in the Indian state of Tamil Nadu and Shoranur in Kerala. Incoming from Chennai side via Arakkonam and Katpadi at Jolarpettai,the railway lines further branches out towards Kozhikode, Nilambur and Thrissur sides in Shoranur. This network links the railway network in Kerala to the networks in Tamil Nadu and subsequently other states.
Salem division is one of the six divisions of Southern Railway zone. Its headquarters is at Salem, Tamil Nadu.
The class YDM-4 is Indian Railways' workhorse diesel locomotive. The first units were imported fully built from the American Locomotive Company (Alco) in 1961. Since 1968, it has been manufactured in India by the Banaras Locomotive Works (BLW), Varanasi. The model name stands for metre gauge (Y), diesel (D), mixed traffic (M) engine. The YDM-4 has been the most successful diesel locomotive in the metre gauge operation of Indian Railways. The YDM-4A is a variant of the YDM-4 supplied by MLW. Originally equipped with vacuum brakes. Some were later equipped with dual brakes, particularly those working in the Northeast Frontier Railway were retrofitted with dual brake system by Lumding shed. The YDM-4 locos have a maximum speed of 100 km/h (62 mph), restricted to 85 km/h (53 mph).
Diesel Loco Shed, Ernakulam is a motive power depot performing locomotive maintenance and repair facility for diesel locomotives of the Indian Railways, located at Ernakulam Junction (ERS) of the Southern Railway zone in the city of Kochi, Kerala. It is one of the four diesel loco sheds of the Southern Railway, the others being at Tondiarpet (TNP) at Chennai, Erode (ED) and Golden Rock (GOC) at Trichy and the only locomotive shed in Kerala and the southernmost loco shed in India. Although it is in Kerala, its locomotives are used mostly in Goa and Maharashtra, and very rarely near the shed for passenger trains.
The Indian locomotive class WDP-3A, colloquially nicknamed the Toaster, is a class of diesel-electric locomotive that was developed in 1998 by Banaras Locomotive Works, Varanasi for Indian Railways. The model name stands for broad gauge (W), Diesel (D), Passengers traffic (P) locomotive with 3100 horsepower (3A). The WDP-3A is a later classification of earlier WDP-2. They entered service in 1998. A total of 44 were built between 1998 and 2001.
The Indian locomotive class WDG-3A is a class of diesel-electric locomotive that was developed in 1994 by Banaras Locomotive Works (BLW),Varanasi for Indian Railways. The model name stands for broad-gauge (W), Diesel (D), Goods traffic (G) engine, 3,100 hp (3A) locomotive. They entered service on 18 July 1995. A total of 1,164 WDG-3A units were built between 1994 and 2015 at BLW, Varanasi with a few units being produced by Diesel Loco Modernisation Works (DLMW) and Parel Workshop.
The Indian locomotive class WAM-1 was a class of 25 kV AC electric locomotives that was developed in the late 1950s by the Groupement 50Hz for Indian Railways. The model name stands for broad gauge (W), AC Current (A), Mixed traffic (M) locomotive, 1st generation (1). They entered service in 1960 thus making them India's first AC electric locomotive. A total of 100 WAM-1 were built by the European consortium between 1959 and 1961, which made them the most numerous class of mainline electric locomotive until the WAG-1.
The Indian locomotive class WDS-6 is a diesel-electric locomotive used by the Indian Railways mainly for shunting and also for performing departmental duties. The model name stands for broad gauge (W), Diesel (D), Shunting (S) engine, 6th generation (6). As of April 2022, 375 units of this class are currently in use all over India.
The Indian locomotive class WDM-3 is a type of diesel-hydraulic locomotive that was developed by Henschel for Indian Railways in 1962. The model name "WDM-3" stands for broad gauge (W), Diesel (D), Mixed traffic (M) engine, 3rd generation (3). These locomotives were put into service between 1970 and 1971, and a total of eight were built between 1962 and 1970. However, they were decommissioned at Gooty in 1995 and are now retired from service.
The Indian locomotive class YDM-1 is a class of diesel-Hydraulic locomotive that was developed in 1954 by North British Locomotive Company (NBL) for Indian Railways. The model name stands for Metre gauge (Y), Diesel (D), Mixed traffic (M) engine, 1st generation (1). They entered service in 1955. A total of 20 YDM-1 locomotives was built between 1954 and 1956, which made them among the first MG main-line diesels.
The Indian locomotive class YDM-5 is a class of diesel-electric locomotive that was developed in 1964 by General Motors (GM-EMD) for Indian Railways. The model name stands for Metre gauge (Y), Diesel (D), Mixed traffic (M) engine, 5th generation (5). They entered service in 1964. A total of 25 YDM-5 locomotives was built between 1963 and 1964.
The Indian locomotive class YDM-3 is a class of diesel-electric locomotive that was developed in 1964 by GM-EMD for Indian Railways. The model name stands for Metre gauge (Y), Diesel (D), Mixed traffic (M) engine, 3rd generation (3). They entered service in 1962. A total of 30 YDM-3 locomotives was built between 1961 and 1962.
Diesel Loco Shed, Abu Road is a motive power depot performing locomotive maintenance and repair facility for diesel locomotives of the Indian Railways, located at Abu Road railway station (ABR) in Abu Road city in the Indian state of Rajasthan. It is one of the two diesel loco sheds of the North Western Railway, the others being at Bhagat ki Kothi.
Diesel Loco Shed, Tondiarpet is a motive power depot performing locomotive maintenance and repair facility for diesel locomotives of the Indian Railways. It is located near Tondiarpet railway station (TNP) of the Southern Railway zone in the city of Chennai, Tamil Nadu and is one of the four diesel loco sheds of the Southern Railway, the others being at Ernakulam (ERS) at Kochi, Erode (ED) and Golden Rock (GOC) at Trichy.
The Indian locomotive class WAG-4 is a class of 25 kV AC electric locomotives that was manufactured by CLW in the late 1960s for Indian Railways. The model name stands for broad gauge (W), AC Current (A), Goods traffic (G) engine, 1st (1). A total of 186 WAG-4 locomotives were built by The European Group 50 Hz Group/European Group/50 Cycles Group (consortium) between 1967 and 1969. They entered service in 1967.
The Indian locomotive class WDM-6 is a class of Diesel locomotive that was developed in 1981 by Banaras Locomotive Works (BLW), Varanasi for Indian Railways. The model name stands for broad gauge (W), Diesel (D), Mixed traffic (M) engine, 6th generation (6). They entered service in 1981. A total of 2 WDM-6 was built at between 1981 and 1982. They were decommissioned at Burdwan (BWN) in 2011.
