Articles 5 to 11 under Part-II of Indian Constitution describe who became citizen of India on the day of commencement of Constitution of India. The articles are as follows:
Article-5: Citizenship at the commencement of the Constitution
Article-6: Rights of citizenship of certain persons who have migrated to India from Pakistan.
Article-7: Rights of citizenship of certain migrants to Pakistan.
Article-8: Rights of citizenship of certain persons of Indian origin residing outside India.
Article-9: Persons voluntarily acquiring citizenship of a foreign State not to be citizens.
Article-10: Continuance of the rights of citizenship.
Article-11: Parliament to regulate the right of citizenship ....