Dear madura,
As per the shops & establishment act of respective state there are some mandatory holidays to be declared in all the firm like Republic Day,Independance Day,Labour Day,Gandhi Jayanthi and Kannada Rajotsava (applicable in karnataka).
For instance if the shops/restaurants are open on those days as per the law the employees who worked that day will be given an compensatory off or a double wages.
If your firm is working on Independence day,you can tell them about the above options.
Regards,