There are two ways in which a person is considered a natural born American citizen. The first one is obvious - to be born in the US. The second way is any child born abroad to an American citizen is automatically an American citizen from birth and not a citizen of the country where they were born. This second way is the citizenship standard for most other countries. Simply being born in a particular country does not give citizenship rights. Citizenship is based upon the citizenship of the parents. A natural born US citizen is a person that does not have to go through a naturalization process to become a citizen - they are citizens from birth. The children of American citizens that live abroad, whether for business, military, or diplomatic service, are American citizens from birth. Therefore, as long as one of Shiva's parents was an American citizen at the time of his birth, he is considered a natural born citizen. I do not know anything about his history to know whether this was the situation. So, if he does not meet the criteria in either case, he cannot hold office.