The Constitution of India
§325 — No person to be ineligible for inclusion in, or to claim to be included in a special, electoral roll on grounds of religion, race, caste or sex
There shall be one general electoral roll for every territorial constituency for election to either House of Parliament or to the House or either House of the Legislature of a State and no person shall be ineligible for inclusion in any such roll or claim to be included in any special electoral roll for any such constituency on grounds only of religion, race, caste, sex or any of them.