In 2000, Chittaranjan Locomotive Works started the production of the WAP-7 for Indian Railways. It was a development of the WAG-9 and is designed to haul 24-car passenger trains at 140 km/h. Its designation stands for “Broad gauge, AC, Passenger, 7th generation”. Later also Banaras and Patiala produced the WAP-7, so that more than 1,700 have been completed until today.

Later, most got the equipment to provide Head-on Generation to the train, what transmit power from the catenary to the train and so eliminates the need for generator cars. They were also equipped with transition couplers which allow the use with cars with screw or automatic couplers. In 2019 the WAP-7HS was introduced as a high speed variant that was designed to run 180 km/h, but was only approved for 160 km/h. But it is unclear how many of this variant were completed and if they are still limited to 130 km/h.

The WAM-1 was the first AC electric locomotive in India. It was developed and built by the European 50 Hz Group and its name stands for “Wide gauge, AC, Mixed service, first generation”. The French electric locomotives from this period served as models, although production was also carried out by Krauss-Maffei and Krupp.

In parallel with the WAM-1, Indian Railways also ordered the WAM-2 and WAM-3 from Japanese manufacturers. The WAM-1 was mainly used by the Eastern Railway in the Ganges plain. The use in passenger service ended with the introduction of the new three-phase locomotives in the 1990s. After that, they were only used in front of freight trains and in shunting duties. In the meantime, all of them have been retired, only No. 20202 “Jagjivan Ram” being preserved.

Indian Railways sought support from ABB in Switzerland to develop a modern three-phase locomotive. The first six locomotives were built directly by ABB and production was gradually switched to purely Indian companies. The designation WAG-9 stands for broad gauge, AC, goods and generation 9. The variants are the WAG-9H with additional ballast, the WAG-9i with IGBT converters, the WAG-9Hi as a combination of the H and i, the WAG-9HC with vacuum brakes and the higher powered WAG-9HH. The WAP-7 was developed parallel to the WAG-9. By early 2023, 3,899 machines had already been completed, while production continued at several plants.