Generally, under the provisions of Foreign Exchange Management Act a person of Indian Origin is an individual (other than a citizen of Pakistan, Bangladesh, Sri Lanka, Afghanistan, China, Iran, Nepal, Bhutan) who at any time held an Indian passport, or he or his father or his grandfather was a citizen of India by virtue of the Constitution of India or Citizenship Act, 1955 (57 of 1955). Non-resident foreign citizens of Indian Origin are treated on par with non-resident Indian citizens for the purpose of certain facilities.