Yes, it is required to exhibit a list of holidays in the regional language on the Notice Board of the factory.
Courtesy in Questions
P.S. Try to reveal your name and place as a courtesy if you are airing a question on this platform. While addressing questions like this, it can be rather embarrassing for members like me when we are not able to know to whom we are answering. We are not bothered to know your company name, but at least your name and place.