Bangalore built by Magadi Kempegowda at 1537. Bangalore ruled by various kingdom in 1758- Hyder Ali, in 1799- British overthrew Tippu sultan, in 1881- Mysore wodeyar, After the independence, Bangalore was designed as the capital of Mysore state in 1956, Bangalore Metropolitan Region comprises Bangalore urban district, Bangalore rural district & Ramanagara district. Each of them again divided into taluks for administration. Bangalore urban comprises of four taluks namely, Anekal, Bangalore east, Bangalore north and Bangalore South. The Bangalore rual district comprises of four talukas namely Devanahalli, Doddaballapura, Hoskote & Nelamangala. The Ramanagara district comprises of four talukas namely Channapatna, Magadi, Kanakapura & Ramanagara. The total Bangalore Metropolitan Region was under 3 administrative bodies, 1. Bangalore Development authority (BDA). 2. Bruhat Bengaluru Mahanagara Palike (BBMP) 3. Bangalore Metropolitan Regioion Development Authority (BMRDA).

Bangalore, the capital of Karnataka, is the fifth largest metropolitan city in the country. The swift growth of Bangalore that stands as Silicon Valley of India in today’s computer ramp has grown on the

Objectives

To reach set goals first literature collected from various works and to prepare maps for topography of Bangalore metropolitan region remote sensing data and GIS techniques are used.

The topography of Bangalore is flat excluding a central ridge running from North, North-East (NNE) to South, South- East (SSE). The highest point measured is Doddabettahalli, which is 962 m (3,156 ft) and lies above this ridge. Bangalore is situated on a ridge which delineating four watersheds, viz. Hebbal, Koramangala, Challaghatta and Vrishabhavathi watersheds. Major rivers run through the area, is Arkavathi and South Pennar cross paths at the Nandi Hills, 60 km to the north. River Vrishabhavathi, a small tributary of Arkavathi, arises within the city at Basavanagudi which flows through the city. Both the rivers, Arkavathi and Vrishabhavathi carry most of Bangalore's sewage. The undulating terrain in the region has facilitated creation of a large number of tanks providing for the traditional uses of irrigation, drinking, fishing and washing. Their creation is mainly attributed to the vision of Kempe Gowda and of the Wodeyar dynasty. This led to Bangalore having hundreds of such water bodies through the centuries. Even in early second half of 20th century, in 1961, the number of lakes and tanks in the city stood at 262. These, and open spaces generally, were seriously affected however with the enhanced demand for real estate and infrastructure consequent to urbanisation. Official figures for the current number of lakes and tanks vary from 117 to 8135 but recent satellite imagery (dated 2003) gives a different picture altogether, showing only 33 lakes visible36 out of which only about 18 are clearly delineated.