It also says the government may shift a PIO card-holder, who enjoys fewer benefits, to be an OCI card-holder from a specified date. Moving the bill for passage in the upper house, Minister of State for Home Affairs Kiren Rijiju said: "It was necessary to merge the two, as under PIO, citizenship was extended up to great-grandchildren but in OCI it was only till grand children. Now it has been extended to great grandchildren."