Indian citizenship: how you get it, prove it and can lose it

Citizenship decides the right to vote, to hold public office, to get an Indian passport, and to enjoy rights the Constitution reserves for citizens, such as the freedoms in Art 19. For children born abroad, people married to foreigners, long-settled migrants and anyone asked to "prove" their status, the rules matter a great deal.

The constitutional base

Arts 5 to 8 of the Constitution decided who was a citizen on 26 January 1950, including people who migrated around Partition. Art 11 gave Parliament the power to legislate, which it did through the Citizenship Act, 1955. India has single citizenship: you are a citizen of India, not of a state, and dual citizenship is not allowed.

Five ways to become a citizen

• By birth (Sec 3). The rule depends on when you were born in India:
  • Born between 26 January 1950 and 30 June 1987: you are a citizen whatever your parents' nationality.
  • Born from 1 July 1987 to 2 December 2004: you are a citizen if at least one parent was an Indian citizen at your birth.
  • Born on or after 3 December 2004: both parents must be Indian citizens, or one must be a citizen and the other not an illegal migrant.
• By descent (Sec 4). A child born outside India is a citizen if a parent was an Indian citizen at the time of birth, provided the birth is registered at an Indian consulate, normally within one year, or later with the Central Government's permission. The parents must declare that the child does not hold another country's passport.
• By registration (Sec 5). For people with a link to India: persons of Indian origin ordinarily resident in India for seven years; spouses of Indian citizens resident for seven years; minor children of Indian citizens; and OCI cardholders registered for five years and resident for one year before applying.
• By naturalisation (Sec 6). For a foreigner who is not an illegal migrant: residence in India for the 12 months just before applying, plus 11 of the 14 years before that, good character, knowledge of an Eighth Schedule language, and an oath of allegiance.
• By incorporation of territory (Sec 7). When territory joins India, the Central Government notifies who becomes a citizen.

The 2019 amendment and Assam

The Citizenship (Amendment) Act, 2019 added Sec 6B, a faster route for Hindus, Sikhs, Buddhists, Jains, Parsis and Christians from Afghanistan, Bangladesh and Pakistan who entered India on or before 31 December 2014: their residence requirement for naturalisation is five years instead of eleven. The rules were notified in March 2024 and applications are filed on the same online portal. Challenges to the amendment were pending in the Supreme Court as of 2026, and its choice of religions and countries remains debated.

In October 2024, a Constitution Bench upheld Sec 6A, a special provision from the 1985 Assam Accord for people who came to Assam from Bangladesh before 25 March 1971. Citizenship questions in Assam run through Foreigners Tribunals and the NRC process, which have their own procedures.

How citizenship can be lost

• Renunciation (Sec 8). An adult can give up Indian citizenship by declaration. Minor children also lose it, but may resume it within one year of turning 18.
• Termination (Sec 9). If you voluntarily acquire another country's citizenship, Indian citizenship ends automatically. Using an Indian passport after taking a foreign one is an offence under the Passports Act.
• Deprivation (Sec 10). The Central Government can take away citizenship obtained by registration or naturalisation for fraud, disloyalty, helping an enemy in war, or a prison sentence of two years or more within five years of becoming a citizen, after notice and a chance to ask for a committee of inquiry.

Because India bars dual citizenship, many people of Indian origin with foreign passports hold an Overseas Citizen of India (OCI) card under Sec 7A. It gives a lifelong multiple-entry visa and parity with Indians in most economic and educational matters, but it is not citizenship: OCI holders cannot vote, hold constitutional posts or government jobs, or normally buy agricultural land, and the card can be cancelled under Sec 7D.

Step by step

1. Work out which route applies from your date and place of birth and your parents' status.
2. Gather proof. For birth: your birth certificate plus a parent's birth certificate, passport, school certificate or old voter roll entry. For descent: the consular birth registration. For registration or naturalisation: passport, visas and residence permits, proof of residence for each year, and marriage certificate where relevant.
3. Apply online at indiancitizenshiponline.nic.in (Ministry of Home Affairs) for registration, naturalisation, renunciation or the Sec 6B route. Upload documents, pay the fee shown on the portal, and print the acknowledgement.
4. Verification. The District Collector or Magistrate verifies documents, may interview you, and reports to the State and the Ministry. This commonly takes many months; check status on the portal.
5. Oath and certificate. If approved, you take an oath of allegiance and receive a certificate of registration or naturalisation. Keep the original safe.
6. For OCI, apply through ociservices.gov.in or the Indian mission in your country.
7. If your citizenship is challenged, ask for the notice in writing, note the deadline, reply with documents, and get a lawyer at once; call 15100 for legal aid. Decisions can be challenged in the High Court.