The National Capital Territory of Delhi is spread over 1,484 km 2 (573 sq mi), of which 783 km 2 (302 sq mi) is declared to be rural and 700 km 2 (270 sq mi) as urban. Delhi has a maximum of 51.9 km (32 mi) in the north-south and a maximum width of 48.48 km (30 mi) in the east-west. Three institutions are working to maintain Delhi: - Municipal Corporation of Delhi: is the largest local body in the world, providing civic services to an estimated 137.60 lakh citizens (area 1,397.3 km 2 or 540 sq mi). This region is also behind only Tokyo by area. ". The Municipal Corporation sees an area of 1399 sq km. Currently, the Municipal Corporation of Delhi is divided into three parts: Upper Delhi Municipal Corporation, East Delhi Municipal Corporation. And South Delhi Municipal Corporation. New Delhi Municipal Council: (NDMC) (area 42.7 km 2 or 16 sq mi) is the name of the Municipal Council of New Delhi. The area covered under it is called the NDMC area. Delhi Cantonment Board: (Area (43 km 2 or 17 sq mi) which covers the cantonment areas of Delhi. Delhi is a very wide area. It extends from Sarup Nagar in the north to Rajokari in the south at its peak. The westernmost end from Najafgarh to the Yamuna River in the east (comparatively traditional eastern end). By the way, Shahdara, Bhajanpura, etc., along with its east end, also come in big markets. Noida, Gurgaon etc. areas of the neighboring states bordering the above borders also come in the National Area. The geographical nature of Delhi is very changing. It varies from flat agricultural plains in the north to the beginning of the dry Aravalli range in the south. There used to be large natural lakes in the south of Delhi, which have now dried up due to excessive mining. One of them is Badkhal Lake. Yamuna river separates the eastern areas of the city. These areas are called Yamuna Par, although they are well connected to New Delhi by many bridges. The Delhi Metro also now crosses the river with two bridges. Delhi is located in northern India at 28.61 ° N 77.23 ° E. It is situated on the banks of the river Yamuna at a height of 400 to 1000 feet above sea level, 160 kilometers south of the Himalayas. It is surrounded on three sides by north, west and south by the state of Haryana and on the east by the state of Uttar Pradesh. Delhi is located almost entirely in the Gangetic region. The two major parts of Delhi's geography are the Yamuna irrigated plains and the Delhi Ridge (hill). The relatively low-level plains provide excellent land for sub-cultivation, although these have been flood-prone areas. These are on the eastern side of Delhi. And on the western side is the ridge area. Its maximum height reaches 316 m (1083 ft). It extends from the Aravalli ranges in the south to the western, northwest and north-eastern regions of the city. The Yamuna, the lifeline of Delhi, is one of the most sacred rivers in Hinduism. Hindon, another small river, separates East Delhi from Ghaziabad. Delhi coming into the seismic zone IV makes it prone to large earthquakes.