Varthur
Varthur is a suburb situated in the Eastern periphery of Bangalore City and part of the internationally famous Whitefield township. Varthur is a Hobli and part of the Bruhat Bangalore Mahanagara Palike. Varthur was a Legislative Assembly in the state of Karnataka but was split into three legislative assemblies C.V.Raman Nagar, Mahadevapura and Krishnarajapura in the year 2008. It is also one of the wards of BBMP. It is located in South-Eastern Bangalore between old Airport road and Sarjapur road. Varthur is very close to ITPB. There are many IT companies in Varthur Hobli. The head office of  one of the largest IT companies, Wipro Technologies is situated at Doddakannelli, Varthur Hobli. Some other companies such as Cisco Systems, ARM, and Aricent Group, are situated in Varthur Hobli. At Varthur, people celebrate Brahmarathotsava of Sri Chennaraya Swamy, which happens on the day of Ratha Saptami. It is one of the famous events that takes place in this area. Two days later is Karaga of Sri Draupathamma (Draupadi) at Sri Dharmaraya Swamy (Yudhishthira) temple, which happens at night and is visited by thousands of people from Varthur, Gunjur, Madhuranagara, Whitefield, Ramagondannahalli, Balagere, Sorahunase, Immadihalli, Harohalli, Muthsandra, and Kotur. Geography . Varthur is located at . The Ponnaiyar flows through Varthur. Varthur Main Road. The stretch starting from HAL old Airport road till Varthur via Marathahalli, Kundalahalli, Thubarahalli, Siddhapura, Ramagondanahalli, and Varthur Kodi is officially known as Varthur Main Road. Varthur lake. The lake ecosystem is an integral part of Bangalore, although unplanned urbanisation and industrialisation have led to the contamination of these water bodies. Varthur Lake, which has an area of is the second largest lake in Bangalore city and also one of the most polluted lakes in Bangalore. Its ecosystem is under continuous degradation because of sewage water from Bangalore  entering the lake from Bellandur Lake, further upstream. This is a man-made lake, built by the Ganga kings over thousands of years ago for agriculture and domestic uses but now the lake is receiving 40% of the sewage water from Bangalore for over 50 years resulting in eutrophication.