The Holidays' Acts (Industrial Establishments National and Festival Holidays Act etc) are state enactments. As such it may change according to states. In some states, the Holidays is declared as per their Shops and Commercial Establishments Act. The applicability of the section/ chapter pertaining to holidays will, however, be restricted to establishments employing certain number of employees. As suggested by Jeevaratnam, it can be 10 employees. In some states, it will apply to factories and mines without reference to the number of employees but will apply to shops and commercial establishments if the establishment has required number of employees. If it is applicable to an establishment, both the national holidays and festival holidays will be applicable to it. I differ the observation of Dr Raghunath that festival holidays are management prerogative. No, if the Holidays Act or provision relating to the holidays is applicable to an establishment, both national holidays and festival holidays should be given to the employees. Only thing is that since national holidays are listed by holidays, say 26th January (Republic day), 1st May (International Labour day or May Day or as Dipti said Maharashtra state formation day), 15th August (Independence day) and 2nd October (Gandhi Jayanti), any of these days coming on a weekly off day need not be compensated by another holiday. BUT the festival holidays (it depends upon the state law) are declared by the employer after consulting with the employees every year. Obviously, no festival holiday coming on a weekly off would be taken for that year.
The thread was about holidays for a tuition centre in Maharashtra. I thing Jeevaratnam has given the answer for that.