Kanpur is the biggest city of the state and is the main centre of commercial and industrial activities. Formerly it was known as Manchester of India. Now it is the commercial capital of Uttar Pradesh.It is situated on the most important national highways no. 2 & 25 and state highway, the main Delhi-Howrah railway trunck lines & at the bank of holy river Ganga. It is about 126 meters above the sea level. Presently civilian air-service to Delhi is available for the city at Ahirwan. The other nearest civilian air port Amausi (Lucknow) is 65Km. away from Kanpur The municipal limit of Kanpur Nagar is about 780 sq. km. About 80% is covered by water supply and about 60% is covered by sewerage system.