This will be published in the local newspaper or you can ask the Chamber of Commerce in your area.
National and Festival Holidays
Generally, there are four national holidays: Independence Day, Republic Day, Gandhi Jayanti, and May Day. Additionally, there are 5-6 festival holidays, such as Pooja holiday, Ganesh Chaturthi, Diwali, and other local festivals. Prepare the list and send it to the labor office and post it on your notice board.