The Indian Succession Act,1925
Section 11. Special mode of acquiring domicile in India
Any person may acquire a domicile in 1[India] by making and depositing in some office in 1[India], appointed in this behalf by the State Government, a declaration in writing under his hand of his desire to acquire such domicile; provided that he has been resident in 1[India] for one year immediately preceding the time of his making such declaration.
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1. Subs. by Act 3 of 1951, s. 3 and Sch., for “the States”.