In India, MV/HV transformers are used by state and private utilities, railways, metro systems, steel and alloy plants, refineries, fertilizers, cement, IT parks, data centers, and special economic zones. They step transmission voltages down for sub-transmission and distribution, feed large motor loads and furnaces, and integrate renewables. Transmission utilities, DISCOMs, and large industrial consumers all maintain fleets of power transformers at 66-765 kV class and medium-power levels.