An Indian Citizen who stays abroad for employment/carrying on business or vacation outside India or stays abroad under circumstances indicating an intention for an uncertain duration of stay abroad is a non-resident. (Persons posted in U. N. Organisations and officials deputed abroad by Central/state Government and Public Sector undertakings on temporary assignments are also treated as non-residents). Non-resident foreign citizen of Indian Origin are treated on par with non-residential Indian Citizen (NRIs) for the purpose of certain facilities.
For the purpose of availing of the facilities of opening and maintenance of bank accounts and investments in shares/securities in India.
A foreign citizen (other than a citizen of Pakistan or Bangladesh) is deemed to be of Indian Origin, if, he, at any time, held and Indian Passport, or he or either of his parents or any of his grand parents was citizen of India by virtue of the Constitution of India or Citizenship Act, 1955 (57 of 1955).
Note: A spouse (not being a citizen of Pakistan or Bangladesh) of and Indian citizen or of a person if Indian Origin is also treated as a person of Indian origin for the above purposes provided the bank accounts are opened or investments in shares/securities in India are made by such persons only jointly with their NRI spouses.