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 |
|---|---|---|---|---|
| Friday | New Year's Day | Regional Holiday | Several states | |
| Thursday | Pongal | Regional Holiday | ||
| Friday | Thiruvalluvar Day | Regional Holiday | Puducherry, Tamil Nadu | |
| Saturday | Uzhavar Tirunal | Regional Holiday | Tamil Nadu | |
| Tuesday | Republic Day | Public Holiday | ||
| Thursday | Bank Holiday | Not A Public Holiday | Banks only. Annual accounts closing | |
| Friday | Good Friday | Regional Holiday | ||
| Tuesday | Telugu New Year's Day | Regional Holiday | Telugu and Kannada New Year | |
| Wednesday | Dr Ambedkar Jayanti | Regional Holiday | ||
| Wednesday | Tamil New Year | Regional Holiday | Puthandu. Tamil Nadu only | |
| Sunday | Mahaveer Jayanthi | Regional Holiday | ||
| Saturday | Labour Day | Regional Holiday | Many states | |
| Friday | Ramzan | Regional Holiday | Most states | |
| Wednesday | Bakrid | Regional Holiday | Many states | |
| Sunday | Independence Day | Public Holiday | ||
| Thursday | Ashura | Regional Holiday | Many states | |
| Monday | Krishna Jayanthi | Regional Holiday | Restricted Holiday | |
| Friday | Ganesh Chaturthi | Regional Holiday | Varasiddhi Vinayaka Vrata | |
| Saturday | Mahatma Gandhi Birthday | Public Holiday | ||
| Thursday | Ayutha Pooja | Regional Holiday | Several states | |
| Friday | Dussehra | Regional Holiday | Vijaya Dashami | |
| Tuesday | Milad-un-Nabi | Regional Holiday | Birthday of Prophet Muhammad | |
| Thursday | Deepavali | Regional Holiday | Most states | |
| Saturday | 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