Indian Succession Act, 1925
(1) The provisions of this Part shall not apply to testamentary succession to the property of any Muhammadan nor, save as provided by section 57, to testamentary succession to the property of any Hindu, Buddhist, Sikh or Jaina; nor shall they apply to any will made before the first day of January, 1866. (2) Save as provided in sub-section (1) or by any other law for the time being in force the provisions of this Part shall constitute the law of [India] applicable to all cases of testamentary succession.