Public holidays observed by private companies usually follow the Tamil Nadu Industrial Establishments (National and Festival Holidays) Act. The four national holidays, (26th January, 1st May, 15th August and 2nd October) are supplemented by five festival holidays selected from any of the festivals given the religious and regional interests of the employees
| Day | Date | Holiday Name | Type | Comments |
|---|---|---|---|---|
| Wednesday | New Year's Day | Regional Holiday | Several states | |
| Wednesday | Pongal | Regional Holiday | ||
| Thursday | Thiruvalluvar Day | Regional Holiday | Puducherry, Tamil Nadu | |
| Friday | Uzhavar Tirunal | Regional Holiday | Tamil Nadu only | |
| Sunday | Republic Day | Public Holiday | ||
| Wednesday | Telugu New Year's Day | Regional Holiday | Telugu and Kannada New Year | |
| Wednesday | Bank Holiday | Not A Public Holiday | Banks only. Annual accounts closing | |
| Monday | Mahaveer Jayanthi | Regional Holiday | ||
| Friday | Good Friday | Regional Holiday | ||
| Tuesday | Dr Ambedkar Jayanti | Regional Holiday | ||
| Tuesday | Tamil New Year | Regional Holiday | Tamil Nadu, Puducherry | |
| Friday | Labour Day | Regional Holiday | Many states | |
| Monday | Ramzan | Regional Holiday | Most states | |
| Saturday | Bakrid | Regional Holiday | Many states | |
| Tuesday | Krishna Jayanthi | Regional Holiday | Many states | |
| Saturday | Independence Day | Public Holiday | ||
| Saturday | Ganesh Chaturthi | Regional Holiday | Varasiddhi Vinayaka Vrata | |
| Sunday | Ashura | Regional Holiday | Many states | |
| Friday | Mahatma Gandhi Birthday | Public Holiday | Gandhi Jayanti | |
| Sunday | Ayutha Pooja | Regional Holiday | Several states | |
| Monday | Dussehra | Regional Holiday | Vijaya Dashami | |
| Friday | Maulud Nabi | Regional Holiday | Birthday of Prophet Muhammad | |
| Saturday | Deepavali | Regional Holiday | Many states | |
| Friday | Christmas Day | Regional Holiday | Observed in all states |
Note: The above list of Tamil Nadu holidays is applicable across the state. Also, it’s for cities listed below:
- Chennai
- Coimbatore
- Madurai
- Tiruchirappalli
- Salem
- Vellore
- Tiruppur
- Thanjavur
- Erode
- Thoothukudi
- Rameswaram
- Ooty
- Kodaikanal
- Hosur