Explanation:

 Sidrapong Hydroelectric Power Station (a.k.a. Sidrapong Hydel Power Station), located at the foothills of Arya Tea Estate 12 km (7.5 mi) from Darjeeling town, is the oldest hydel power station or hydroelectric power plant in India.commissioned on 10 November 1897, its original capacity was 2 × 65 kW, which was expanded in phases for increased demands to a total 1000 kW in 1916.