| Nilakottai | |
| Settlement Type: | town |
| Pushpin Map: | India Tamil Nadu |
| Pushpin Label Position: | right |
| Pushpin Map Caption: | Location in Tamil Nadu, India |
| Coordinates: | 10.17°N 77.87°W |
| Subdivision Type: | Country |
| Subdivision Name: |  India |
| Subdivision Type1: | State |
| Subdivision Type3: | District |
| Subdivision Type2: | Region |
| Subdivision Name1: | Tamil Nadu |
| Subdivision Name2: | Madurai |
| Subdivision Name3: | Dindigul |
| Unit Pref: | Metric |
| Elevation M: | 320 |
| Population Total: | 19630 |
| Population Density Km2: | auto |
| Demographics Type1: | Languages |
| Demographics1 Title1: | Official |
| Timezone1: | IST |
| Utc Offset1: | +5:30 |
| Postal Code: | 624208 |
| Website: | Nilakottai.in |
| Demographics1 Info1: | Tamil |
Nilakkottai (also spelled as Nilakottai) is a town in the Dindigul district of the Indian state of Tamil Nadu. The town was established in 1958, as 1st Grade Town Panchayat. In 1970, it was changed to Selection Grade. The Town Panchayat has been under the municipal act since 1996. In 2004, it was called Special Village Panchayat, and in 2006, Selection Grade Town Panchayat.
Nilakottai palayam was one of 26 palayams in Dindigul province. Its founder, Kulappa Nayajar, came from Vijayanagaram in 1366 A.D. before the period of Vishwanatha Nayak.
Nilakottai consists mainly of arable lands. As a reward for helping repel an invasion, Makkala Nayaka of the Kambala caste was rewarded by the emperor of Vijayanagar with the land west of Madura. In these lands, he built a mud fort Nilakkottai in 1366 A.D with permission from lord vishnu Devaraya Raya. Makkala ruled this fort for 12 years until he was succeeded by his son, Kulappa Nayaka.
Both Kulappa Nayaka and Pandya King Chandra Sekara of Madura were deposed by a Chola Prince named Veera Sekara Chozha. Both defeated rulers appealed to Krishna Deva Raya for help and The Krishna Deva Raya sent Kotikam Nagama Nayakar to aid them. Nagama Nayakkar defeated the Chola ruler and took Madurai, but suddenly withdrew his allegiance and declined to help the Pandya king, usurping the throne. The Vijaya Nagar emperor demanded reprisal. Nayakkar's son, Vishwanaha, volunteered. He overthrew his father and handed him over to the emperor. As a reward for his loyalty, the emperor appointed Viswanha as the governor of Madurai.
During Vishwanatha Nayakkar's rule, Tamil Nadu Kulappa Nayakkar aided him in numerous conflicts. When Pandiya assaulted Madurai country, Kulappa Nayakkar ended their revolt.
After Vishwanatha Nayakkar, Madurai was ruled by Krishappa Nayakkar (1554–1572).
Droughts prevented agricultural success in Nilakotttai, so Kulappa Nayakar was unable to pay his tribute to the British government. The conflict came to a head in 1797 when, after sending his family to Dobinayanakanur, the Polegar gathered forces in Kallarnadu, joined the revolt, and tried unsuccessfully to expel the British garrison from his fort. .
Nilakkottai is located at .[1] It has an average elevation of 320 metres (1049 feet).
India census,[2] Nilakkottai had a population of 19,630. Males constitute 50% of the population and females 50%. Nilakkottai has an average literacy rate of 71%, higher than the national average of 59.5%: male literacy is 76%, and female literacy is 66%. In Nilakkottai, 12% of the population is under 6 years of age.
Nilakottai is famous for its flower markets, which export to all parts of India and overseas. Madurai region's jasmine is famous because of Nilakottai. Nilakottai was in Madurai district but later joined the Dindugal district. Nilakottai is also famous for its brass vessels and goldsmiths. There is an industrial estate established by SIPCOT, which features manufacturing and assembling units such as Fenner (India) limited, Dharani Rubber private limited, Amway, and TAFE Tractor Company.International Agricultural Processing Private Limited (IAP), a leading vegetables processing company focussed on 100% exports, is located in Musavanuthu village, Nilakottaihttps://cdn.s3waas.gov.in/s3f74909ace68e51891440e4da0b65a70c/uploads/2018/05/2018052936.pdf
Nilakottai assembly constituency (Reserved) is part of Dindigul (Lok Sabha constituency).