A sub-division is an administrative division of a district in India. In some states( Andhra Pradesh , Telangana , Tamil Nadu , Kerala ) they are called Revenue Divisions . It is headed by a sub-divisional magistrate (also known as assistant collector or assistant commissioner). In some states, the post is designated as Revenue Divisional Officer (RDO) or Sub-Divisional Officer (Civil). A district may have multiple sub-divisions, and each of those sub-divisions may contain multiple sub-districts ( tehsils / C.D. Blocks ) and municipalities. For example, in West Bengal , the Murshidabad district contains five sub-divisions ( mahakumas )
18-576: Pulhal is a Northwestern residential town in Chennai district in the Indian state of Tamil Nadu . Pulhal is located on the banks of Pulhal Lake . The town is known for Pulhal Central Prison . The area is one of the 163 notified areas ( megalithic sites ) in the state of Tamil Nadu. In ancient times, the region was ruled by a chief of the Kurumbars variously titled as Kamunda Kurumba Prabhu and Pulhal Raja who
36-492: A division is known as "revenue division" and divisional commissioner as Revenue Divisional Commissioner (RDC), while revenue divisions within a district are strictly known as sub-divisions. The constitution of revenue divisions and the appointment of Revenue Divisional Commissioners is as per the Orissa Revenue Divisional Commissioners Act, 1957. This article about geography terminology
54-542: A rugged semi-circular fashion and its coastline is about 25.60 km (2.5% of the total coastline of Tamil Nadu). Because of its strategic location and economic importance, it is referred to as the "Gateway of South India." The drainage system includes two rivers , namely, Cooum (flowing in the northern part) and Adyar (flowing in the southern part), a canal (the Buckingham ), and a stream (the Otteri Nullah ) slicing
72-558: Is also credited with building a royal fort at this site. The fort and the land was later overran by the Chola sovereign from Thanjavur. Pulhal aeri , or Pulhal lake , also known as the Red Hills Lake , is located in Ponneri Taluk of Thiruvallur district, Tamil Nadu, India. It is one of the two rain-fed reservoirs from where water is drawn for supply to Chennai City, the other one being
90-563: Is also expressed as Camp. Pulhal Central Prison is located in the neighbourhood. The prison began operation in 2006, replacing the erstwhile Chennai Central Prison . The plan for the construction of Pulhal Central Prison was conceived during the early 2000s. Sites in Pulhal and in Maraimalai Nagar were initially considered and the final decision to construct in Pulhal was made due to the availability of large piece of Government owned land. It
108-575: Is one of the Sri Lankan refugee camps out of 115 camps were found in Tamil Nadu. According to Indian census Thiruvallur districts has second highest Sri Lankan refugee population. It has 1,646 households with a total of 5,387 refugees. Particularly Pulhal camp has second highest refugee population in Thiruvallur district. It accounts for 408 households with a refugee population of 1,283. That is why Pulhal Town
126-570: The Chembarambakkam Lake / Porur Lake . As of 2001 India census , Pulhal had a population of 20,297. Males constitute 49% of the population and females 51%. Pulhal has an average literacy rate of 76%, higher than the national average of 59.5%; male literacy is 84%, and female literacy is 68%. In Pulhal, 14% of the population is under 6 years of age. Pulhal is now in Chennai District. Major to supply water to Chennai people. Pulhal camp
144-482: The district into several islands. The district falls under Seismic Zone III indicating a moderate risk of earthquake . Geologically the district is divided into three regions, namely, sandy, clayey and hard-rock regions. The soil comprises clay , shale and sandstone . Of the total land area, reserved forests cover 2.71 km and is concentrated in and around the Guindy National Park region, one of
162-533: The district were split to create five new ones: Velachery , Purasawalkam , Ayanavaram , Aminjikarai and Guindy . In January 2018, the state government announced that the district will be expanded to match the boundaries of the Greater Chennai Corporation . This will integrate six additional taluks from Tiruvallur and Kanchipuram districts into the Chennai district. The new divisions and taluks of
180-439: The district will be: Revenue division A Revenue division should not be confused with divisions of a state. States are divided into multiple divisions (headed by divisional commissioners in some states), and these divisions are further divided into districts (headed by district magistrates , collectors, or deputy commissioners). Revenue division is not synonymous with sub-division in every Indian state. In Odisha ,
198-545: The district's population descended from its settlements in the 1st century CE to the Middle Ages , but the diversity has grown much since then. The district consists of only one civic body, the megacity of Chennai, which forms the core and the most notable portion of the much bigger Chennai metropolis , or officially, the Chennai Metropolitan Area . In 2018, the district's limits were expanded, aligning with that of
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#1732873199609216-629: The father of a general of the Vijayanagar Empire . Chennai district covers an area of 426 km located on the Eastern Coastal Plains of India. It is situated on the northeastern corner of Tamil Nadu along the Coramandel coast , a region bounded by the Bay of Bengal and is surrounded inland by the districts of Tiruvallur , Kanchipuram and Chengalpattu . It lies between 12°59' and 13°9' of
234-453: The few national parks in the world located within a city. The forest cover of the district is as follows: Chennai has Tropical savanna climate ( Köppen : Aw) According to 2011 census , Chennai district had a population of 4,646,732 in unexpanded old limits area of 176 sq.km. with a sex-ratio of 989 females for every 1,000 males, much above the national average of 929. Scheduled Castes and Scheduled Tribes accounted for 16.78% and 0.22% of
252-419: The newly expanded Greater Chennai Corporation, which had annexed adjacent municipalities. It resulted in the area being increased from 175 square kilometres (68 sq mi) to 426 square kilometres (164 sq mi). The district is divided into three revenue divisions and ten taluks .It has GDP ( PPP ) of $ 143.9 Billion ( as of 2023 ) The name Chennai was derived from Damarla Chennappa Nayak ,
270-470: The northern latitude and 80°12' and 80°19' of the eastern longitude at an average altitude of 6 metres above sea level on a 'sandy shelving breaker swept' beach. Terrain slope varies from 1:5000 to 1:10,000. The terrain is very flat with contours ranging from 2 m to 10 m above mean sea level with a few isolated hillocks in the southwest beyond the district limits at St. Thomas Mount , Pallavaram and Tambaram . The district runs inland in
288-656: The population respectively. The average literacy of the district was 81.27%, compared to the national average of 72.99%. With the expanded limits to 426 sq. km. Chennai district had a population of 6,748,026 as per 2011 census data. The district had a total of 1,154,982 households. There were a total of 1,817,297 workers, comprising 10,210 cultivators, 10,251 main agricultural labourers, 29,143 in house hold industries, 1,569,950 other workers, 197,743 marginal workers, 4,244 marginal cultivators, 3,423 marginal agricultural labourers, 8,202 marginal workers in household industries and 181,874 other marginal workers. In 2013, five taluks on
306-432: The state. The district is coterminous with the city of Chennai , which is administered by the Greater Chennai Corporation . It is surrounded by Tiruvallur district in the north and the west, Kanchipuram district in the south-west, Chenglpattu district in the south, and the Bay of Bengal in the east. As of 2011, the district had a population of 67,48,026 with a sex-ratio of 989 females for every 1,000 males. Much of
324-434: Was constructed by Tamil Nadu Police Housing Corporation (TNPHC) for a cost of ₹ 1,770 million in less than 3 years. It was inaugurated by then chief minister of Tamil Nadu, M. Karunanidhi, on 26 November 2006. Chennai district Chennai district , formerly known as Madras district , is one of the 38 districts in the state of Tamil Nadu , India . It is the smallest and the most densely populated district in
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