| Nanjai Edayar | |
| Settlement Type: | Village panchayat |
| Pushpin Map: | India Tamil Nadu#India |
| Pushpin Label Position: | left |
| Pushpin Map Caption: | Location in Tamil Nadu, India |
| Coordinates: | 11.098°N 78.0345°W |
| Subdivision Type: | Country |
| Subdivision Name: |  India |
| Subdivision Type1: | State |
| Subdivision Name1: | Tamil Nadu |
| Subdivision Type2: | District |
| Subdivision Name2: | Namakkal |
| Subdivision Type3: | Taluk |
| Subdivision Name3: | Paramathi Velur taluk |
| Subdivision Type4: | Union |
| Subdivision Name4: | Mohanur |
| Founder: | Nanjai Edayar people |
| Government Type: | Village panchayat |
| Governing Body: | Nanjai Edayar Village panchayat |
| Leader Title1: | Chief Minister |
| Leader Name1: | J. Jayalalitha |
| Leader Title2: | Namakkal M.P. |
| Leader Name2: | P. R. Sundaram |
| Leader Title3: | Rasipuram M.L.A |
| Leader Title4: | Panchayat Chairman |
| Unit Pref: | Metric |
| Elevation M: | 121 |
| Population Total: | 3690 |
| Population As Of: | 2011 |
| Population Density Km2: | auto |
| Population Demonym: | Indian |
| Demographics Type1: | Languages |
| Demographics1 Title1: | Official |
| Demographics1 Info1: | Tamil (தமிழ்) |
| Timezone1: | IST |
| Utc Offset1: | +5:30 |
| Postal Code Type: | PIN |
| Postal Code: | 638182 |
| Registration Plate: | TN-28 |
Nanjai Edayar [1] is a village panchayat (council) located in the Namakkal district of Tamil Nadu state, India.
Nanjai Edayar is located 25km (16miles) south of the district headquarters Namakkal, 3km (02miles) from Paramathi Velur (the biggest town in Paramathi Velur Taluk), 14km (09miles) from Mohanur, and 380km (240miles) from the state capital Chennai.
Kalipalayam (8 km), Manappalli (8 km), Manickanatham (8 km), Irukkur (10 km), Pillaikalathur (10 km) are neighboring villages.
The Thirumanimutharu Mutharu joins the Kaveri (Cauvery) river at Nanjai Edayar. The river Manimutharu starts at Salem and runs through Paramathi Velur, joining the Cauvery at Nanjai Idayaru village.
Thiruveleeswarar temple (built by Rajaraja Chola), Azhagu Nachchiyar temple, Mariamman temple, and Raja temple are places of worship there.
Thiruveleeswarar temple’s history dates back to the time of the Mahabharatha epic and is one of the five Shiva temples where Bheema worshipped.
The five Shiva temples are situated on the banks of the Manimutharu– Sukavaneswarar in Salem, Karapuranathar in Uthamachozhapuram, Veeratteeswarar in Pilloor, Bheemeswarar in Mavureddi, and Tiruveneeswarar in Nanjai Idayaru.
Worshipping at all the five temples simultaneously is considered by locals as a source of good luck.
Azhagu nachiar car festival is held every year.
A free coaching center has been run by the Government that helps unemployed people prepare for their competitive exams. People from nearby villages are also assisted there.
Publisher Nanjai Pathippagam publishes books for children and students.
The village is considered a symbol of old Tamil and Hindu dharma, thanks to its five rest homes or Savadis available to travelers.
The founder of the Kandasamy Kandar Trust, Sri Kandasamy Kandar, is from Nanjai Edayar. The Trust runs government-supported elementary schools, middle schools, higher secondary schools, matriculation schools, and colleges at Paramathi Velur, Namakkal, Kabilarmalai, and Nanjai Edayar. The Trust provides free homes for students and operates in Paramathi Velur, Salem, and Chennai. Free milk for village infants has been supplied by the Trust for more than 100 years.
Dr. R. Somasundaram now heads the Trust. He was nominated as a member of the Tamilnadu Vanniakula Kshatriya Public Charitable Trust and Endowments by the Government of Tamil Nadu.