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Home , Chengam, Chettupattu, Cheyyar, Cuddalore, Dharmapuri, Kalambur

DISTRICT (also known as Thiruvannaamalai) is one of the 32 districts in the state of , in South . It was formed in the year 1989 from non-existing District as Tiruvannamalai Sambuvarayar and Ambedkar. Tiruvannamalai town is the district headquarters. The district is divided into 12 Taluks - , Tiruvannamalai, , , Aarani, , , , and . The District lies between 12º 00'00’’to 12º 52’30’Northlatitude and East Longitude 78º 39’30’’ to 79º 45’36’’. The total geographical extent of the area is 6190 Sq.Km. There are 18 Blocks, 860 Villages and 4755 Habitations in the District.

Krishnagiri District, , Chittor District,

Chennai District District,

Dharmapuri District TIRUVANNAMALAI District DISTRICT

Salem District District District Google Map of Tiruvannamlai District

District Map of Tiruvannamlai

DEMOGRAPHICS According to 2011 census, Tiruvannamalai District had a population of 2,464,875 with a sex-ratio of 994 females for every 1,000 males, much above the national average of 929. A total of 272,569 were under the age of six, constituting 141,205 males and 131,364 females. Tiruvannamalai District has an area of 6,191 km2. It is bounded on the north by Vellore District, on the east by , on the south by Villupuram District, and on the west by and districts. Tiruvannamalai District is divided into ten taluks, 27 blocks and 1,061 villages covering an area of 631,205 ha. The ten taluks of Tiruvannamalai are listed below:

Population S.No Taluk Headquarters Area Pop density (2011)

2 2 1 Polur Polur 509 km 328,381 645 /km Population S.No Taluk Headquarters Area Pop density (2011)

2 2 2 Tiruvannamalai-Urban Tiruvannamalai 102 km 345,087 3,382 /km

2 2 4 Thandarampattu Thandarampattu 691 km 410,880 593 /km

2 2 5 Arani Arani 327 km 220,220 673 /km

2 2 6 Cheyyar tiruvethipuram 344 km 200,157 618 /km

7 Kalasapakkam kalasapakkam 532 km2 329,013 618 /km2

2 2 8 savvadhu malai Jamunamarathoor 645 km 188,897 291 /km

2 2 9 Vandavasi Vandavasi 645 km 421,174 652 /km

2 2 10 Chengam chengam 510 km 325,993 639 /km

2 2 11 Chetpet chetpet 493 km 290,100 588 /km

2 2 12 Vembakkam Vembakkam 310 km 180,210 581 /km

List of cities having population of one lakh and above as per 2011 Census

S.No City Population S.NO City Population

1 Tiruvannamalai 3,80,543 9 Gandhinagar-Lakshmipuram 45,571

2 Arani 1,23,783 10 , Irumbedu, Rattinamangalam 31,751

3 Vandavasi 1,16,452 11 28,059 4 Polur 1,01,420 12 25,374

5 Tiruvethipuram 87,901 13 Thyagi Nagar 24,329

6 Chengam 74,901 14 22,619

7 59,580 15 Adamangalam-Pudur 21,750

8 Kalasapakkam 46,910 16 Kizh-Pennathur 21,308

PHYSIOGRAPHY AND DRAINAGE: The entire district is an undulating terrain with isolated hillocks on the western and north western parts. The western part of the district is covered by Javadhu hill ranges while the eastern part is characterized by isolated hillocks. Tiruvannamalai hill occurs right in the centre of the town with an elevation of 800m (2668ft). There are many isolated hillocks and tor complexes seen in Tiruvannamalai, Thandarampet, Chengam, Polur, Arni and Kalasapakkam blocks. The major rivers traversing the area are Ponnaiyar and Cheyyar. The major part of the district falls under the Palar sub catchment and extreme southern part of the district fall under Ponnaiyar sub catchment. RAINFALL The average annual rainfall and the 5 years rainfall collected from IMD, Chennai is as follows:

GEOLOGY

GROUND WATER LEVEL The Ground Water levels from the 58 number of observation wells of TWAD have been analysed for Post-Monsoon and Pre-Monsoon. Since 1991 average Ground water level in m Below Ground Level for pre and post monsoon is as follows:

Source: http://www.twadboard.gov.in/twad/tiruvannamalai_dist.aspx

https://en.wikipedia.org/wiki/Tiruvannamalai_district

http://www.mapsofindia.com/maps/tamilnadu/districts/tirvannamalai.htm