Following are list of government holidays as per the calendar 2017. Holidays includes India National Holidays and Festivals Holidays declared by Tamil Nadu Government.
| Holiday Reason | Day | Date |
| English New Year Day | Sunday | January 01-01-2017 |
| Thai pongal | Saturday | January 14-01-2017 |
| Mattu Pongal | Sunday | January 15-01-2017 |
| Uzhavar Thirunal | Monday | January 16-01-2017 |
| Republic day | Thursday | January 26-01-2017 |
| Telugu new year - Ugadi Festivel | Wednesday | March 29-03-2017 |
| Annual Bank account Closing Day (Bank holiday only) |
Saturday | April 01-04-2017 |
| Mahavir Jayanti | Saturday | April 08-04-2017 |
| Good Friday and Tamil New Year |
Friday | April 14-04-2017 |
| May Day - workers day | Monday |
May 01-05-2017 |
| Ramzan - Ramadan | Monday | July 26-06-2017 |
| Krishna Jayanthi ( Gokulashtami ) | Monday | August 14-08-2017 |
| Indian Independence Day | Tuesday | August 15-08-2017 |
| Vinayagar Chaturthi | Friday | August 25-08-2017 |
| Bakrid - Eid al-Adha | Saturday | September 02-09-2017 |
| Saraswathi Pooja,Ayudha Pooja | Friday | September 29-09-2017 |
| Vijayadashami | Saturday | September 30-09-2017 |
| Muharram | Sunday | October 01-10-2017 |
| Gandhi Jayanti | Monday | October 02-10-2017 |
| Diwali - Deepavali | Wednesday | October 18-10-2017 |
| milad un nabi | Saturday | December 02-12-2017 |
| Christmas day | Monday | December 25-12-2017 |