Dear Mr.Rajesh,
To your knowledge, you could ask this question because of the reason you live in a Republic Country and it is declared public holiday across the country in remembrance of the freedom fighters who struggled for us.Back to your question on these days all institutions, irrespective of under which law they are covered, or whether they are public or private organizations or MNCs should necessarily remain closed.
But if for some reasons, on these national holidays if the employers wish to keep their organization functional, they need to obtain prior permission from concerned authorities. Also, the workers who work in organization on these national holidays are entitled to receive double wages for the day.Thank You