Citizenship means membership of a country, nation or state.
A citizen is a legal member of wherever he comes from and has some rights, duties and obligations.
Types of citizenship
By Birth: A person becomes a citizen of the country where he is born.
By Marriage and Registration: A foreigner can becomes a citizen if he/she marries a Nigerian and registers the marriage.
By Descent: Many Nigerians who live in other countries and have children in those countries automatically have their children as Nigerians based on descent.
By Naturalization: This is having citizenship of another country having fulfill certain conditions e.g. A foreigner that have lived up to 15 years in Nigeria can apply for citizenship if he/she fulfill certain conditions.