Under the Shops and Establishment Act, Sunday is generally considered a holiday, although this may vary from state to state. It remains a holiday unless the state government has granted an exemption, making it a recognized holiday. If any of the other two days are National Holidays, you will also be entitled to those. Additionally, reference can be made to the Weekly Holiday Act of 1942. Apart from these regulations, any further arrangements regarding holidays should be discussed directly between you and your employer.