As per Indian Citizenship Act,1955 and the rules made under, there is no provision for dual citizenship. Indian citizen should therefore refrain from using the title in any manner. OCI Card gives all facilities enjoyed by citizen of India except the following :
'The OCI Cardholder is not entitled to vote, be a member of Legislative Assembly or Legislative Council or Parliament, cannot hold Constitutional posts such as President, Vice President, Judge of Supreme Court or High Court etc. The OCI Cardholder shall not be entitled for appointment to public services and posts in connection with the affairs of the Union or of any State except for appointment in such services and posts as the Central Government may, by special order, in that behalf, specify. Further, as stated in para 5 above, the OCI Cardholder cannot acquire agricultural or plantation properties in India'.