National and Regional Public holidays of Tamil Nadu in 2017
| Day | Date | Holiday | Comments |
|---|---|---|---|
| Sunday | January 01 | New Years Day | Arunachal pradesh, Manipur, Meghalaya, Miizoram, Nagaland, Sikkim, Tamil Nadu only |
| Saturday | January 14 | Pongal | Also known as Makar Sankranti, Lohri, Bihu, Hadaga, Poki |
| Sunday | January 15 | Thiruvalluvar Day | Tamil Nadu only |
| Monday | January 16 | Uzhavar Tirunal | Puducherry, Tamil Nadu only |
| Tuesday | January 17 | Public Holiday | Tamil Nadu only. 100th Birth Anniversary of Puratchi Thalaivar M.G.R. |
| Thursday | January 26 | Republic Day | Commemorates the establishment of the Constitution of India |
| Wednesday | March 29 | Telugu New Year | Telugu and Kannada New Year. Tamil Nadu only. |
| Saturday | April 01 | Bank Holiday | Banks only. Annual accounts closing |
| Sunday | April 09 | Mahavir Jayanti | The most important religious holiday in Jainism |
| Friday | April 14 | Dr Ambedkar Jayanti | Birthday of Bhimrao Ramji Ambedekar |
| Friday | April 14 | Good Friday | Friday before Easter Sunday |
| Friday | April 14 | Tamil New Year | Puthandu. Tamil Nadu only |
| Monday | May 01 | May Day | Assam, Bihar, Goa, Jharkhand, Karnataka, Kerala, Manipur, Punjab, Tamil Nadu, West Bengal only |
| Monday | June 26 | Idul Fitr | Many states |
| Monday | August 14 | Janmashtami | Celebrates the birth of Lord Shri Krishna |
| Tuesday | August 15 | Independence Day | |
| Friday | August 25 | Ganesh Chaturthi | Varasiddhi Vinayaka Vrata |
| Saturday | September 02 | Idul Juha | Eid al-Adha |
| Thursday | September 28 | Ayudha Puja | Tamil Nadu |
| Saturday | September 30 | Vijaya Dashami | Karnataka, Kerala, Odisha, Sikkim, Tamil Nadu. Dussehra |
| Sunday | October 01 | Muharram (10th Day) | Day of Ashurah |
| Monday | October 02 | Mahatma Gandhi Birthday | Gandhi Jayanti |
| Wednesday | October 18 | Deewali | Deepawali |
| Friday | December 01 | Milad-un-Nabi | |
| Monday | December 25 | Christmas Day | Observed in all states |
