In addition to three national holidays viz. Republic Day on 26th January,Independance Day on 15th August , and Mahtma Gandhi's birth day on 2nd October, we have a number of public holidays.Further,Holiday List varies from organisation to organisation.However , you can get list of Central Govt. Holidays for any calendar year from the net. You may also get holiday list of banks,High Courts or Supreme Courts from the net.
In addition to above, Govt. may declare a special public holiday through a separate Gazette Notification.