Periyar (meaning: big river) is the longest river and the river with the largest discharge potential in the Indian state of Kerala. It is one of the few perennial rivers in the region and provides drinking water for several major towns. The Periyar is of utmost significance to the economy of Kerala. It generates a significant proportion of Kerala’s electrical power via the Idukki Dam and flows along a region of industrial and commercial activity. The river also provides water for irrigation and domestic use throughout its course besides supporting a rich fishery.Due to these reasons, the river has been named the “Lifeline of Kerala”. Kochi city, in the vicinity of the river mouth draws its water supply from Aluva, an upstream site sufficiently free of seawater intrusion. Twenty five percent of Kerala’s industries are along the banks of river Periyar. These are mostly crowded within a stretch of 5 kilometres in the Eloor-Edayar region (Udhyogamandal), about 10 kilometres (6 mi) north of Kochi harbor.Aluva (formerly Alwaye) is a municipality and a region in Kochi Metropolitan Area of the Ernakulam district in Kerala, India. It is around 17 km from Kochi city center.
Located on the banks of River Periyar,Aluva is one of the major industrial centres of the state. A major transportation hub, with easy access to all major forms of transportation, Aluva acts as a corridor which links the highland districts to the rest of the state. Cochin International Airport Limited – CIAL at Nedumbassery is 11.7 km from Aluva. Aluva is more famous for its accessibility through rail (Aluva Railway Station), air (CIAL Airport) and metro (Kochi Metro Rail Limited).