Why this matters now
Citizenship is tested for the constitutional articles, the single-citizenship feature, and the modes of acquisition/loss, and it is highly topical (CAA, NRC, OCI). Clarity here scores easily.
Constitutional provisions (Articles 5-11)
Articles 5-11 identified who became citizens at the Constitution’s commencement (by domicile, migration and registration) and gave Parliament the power (Article 11) to make laws on citizenship. India has single citizenship — there is only Indian citizenship, not separate state citizenship (unlike the US).
The Citizenship Act, 1955
The Act lays down five ways to acquire citizenship: by birth, by descent, by registration, by naturalisation, and by incorporation of territory. It also specifies loss of citizenship by renunciation, termination (acquiring another nationality) and deprivation (by the government, e.g. for fraud or disloyalty).
Overseas Citizenship (OCI)
India does not allow dual citizenship, but offers the Overseas Citizen of India (OCI) card to people of Indian origin abroad — granting a lifelong visa and certain benefits, but not full political rights (no vote, no public office, no agricultural land purchase). The earlier PIO scheme was merged into OCI.
Recent context
Citizenship has featured prominently in recent debates around the Citizenship (Amendment) Act, 2019, which created a path to citizenship for certain persecuted minorities from three neighbouring countries who entered before a cut-off date — a subject of significant political and legal discussion.
UPSC angle
Know Articles 5-11 + Article 11 (Parliament’s power), single citizenship, the five modes of acquisition and three of loss under the 1955 Act, and that OCI is not dual citizenship (no political rights).
Frequently asked questions
Which articles deal with citizenship in the Constitution?
Articles 5-11; Article 11 empowers Parliament to regulate citizenship by law.
What is single citizenship?
India provides only one citizenship — Indian — with no separate state citizenship, unlike the United States.
How can Indian citizenship be acquired?
By birth, descent, registration, naturalisation, or incorporation of territory, under the Citizenship Act, 1955.
Is OCI the same as dual citizenship?
No — India does not allow dual citizenship; OCI gives a lifelong visa and some benefits but not political rights like voting or holding public office.