| Kilnathur | |
| Other Name: | Kizh-Arunai |
| Settlement Type: | Panchayat town |
| Pushpin Map: | India Tamil Nadu |
| Pushpin Label Position: | left |
| Pushpin Map Caption: | Location in Tamil Nadu, India |
| Coordinates: | 12.22°N 79.11°W |
| Subdivision Type: | Country |
| Subdivision Name: |  India |
| Subdivision Type1: | State |
| Subdivision Name1: | Tamil Nadu |
| Subdivision Type2: | District |
| Subdivision Name2: | Tiruvannamalai |
| Leader Title1: | Chairman |
| Leader Name1: | ammaiayappan(dmk) |
| Unit Pref: | Metric |
| Area Total Km2: | 16.3 |
| Elevation M: | 169 |
| Population Total: | 13600 |
| Population As Of: | 2012 |
| Population Density Km2: | auto |
| Demographics Type1: | Languages |
| Demographics1 Title1: | Official |
| Demographics1 Info1: | Tamil |
| Timezone1: | IST |
| Utc Offset1: | +5:30 |
| Postal Code: | 606 610 (fully) and 606 603 . |
| Area Code Type: | Telephone code |
| Area Code: | 91-4175 |
| Registration Plate: | TN 25 |
| Blank1 Name Sec1: | Lok Sabha constituency |
| Blank1 Info Sec1: | Tiruvannamalai |
| Blank2 Name Sec1: | Vidhan Sabha constituency |
| Blank2 Info Sec1: | Tiruvannamalai city |
| Blank1 Name Sec2: | Climate |
| Blank1 Info Sec2: | moderate (Köppen) |
| Blank2 Name Sec2: | Avg. summer temperature |
| Blank2 Info Sec2: | 41°C |
| Blank3 Name Sec2: | Avg. winter temperature |
| Blank3 Info Sec2: | 18°C |
Kilnathur, also known as Kizh-arunai, is a town panchayat and suburb in Tiruvannamalai district, Tamil Nadu, India. It is one of the oldest settlements in the North Arcot region. It developed along with Tiruvannamalai.
As of 2001, Kilnathur had a population of 90,000. In the census, it had a population of 99,600.
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Kilnathur".
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