India follows a system of single citizenship, meaning all citizens have the same rights and privileges regardless of their state of residence. The Constitution also implies a single domicile. While the President must be a citizen by birth, the Head of State role can be attained by other means in different contexts or under specific interpretations not directly addressed by this statement. Furthermore, citizenship granted to a foreigner can be renounced or terminated under certain conditions as per the Citizenship Act, 1955, negating the absolute claim in the third statement.