The Citizenship Act, 1955 is the Indian law that defines who is a citizen, how a person can become one, and how citizenship is lost. Passed by Parliament in the sixth year of the Republic, it fills the space the Constitution left open, since the Constitution only settled citizenship as it stood on January 26, 1950. The Ministry of Home Affairs administers the Act, and its rules have been rewritten by amendments in 1985, 1992, 2003, 2005, 2015, and 2019.1India Code. Citizenship Act 1955
The Act opens four routes into citizenship — birth, descent, registration, and naturalization — and closes it in three ways: renunciation, automatic loss when a person takes foreign citizenship, and deprivation ordered by the central government. India does not permit dual nationality, and that single rule shapes much of what follows.
Citizenship by Birth
Section 3 splits birth-based citizenship into three periods, and the year you were born decides which rule applies.
- Born in India between January 26, 1950 and July 1, 1987: citizen regardless of parents’ nationality.
- Born in India after July 1, 1987 and before December 3, 2004: at least one parent must have been an Indian citizen at the time of birth.
- Born in India on or after December 3, 2004: both parents must be Indian citizens, or one parent must be a citizen while the other is not an illegal migrant.
Children of foreign diplomats posted in India and children of enemy aliens born in occupied territory are excluded from all three tiers.1India Code. Citizenship Act 1955
Citizenship by Descent
Section 4 covers people born outside India to Indian parents. For births abroad between January 26, 1950 and December 10, 1992, the father had to be an Indian citizen at the time of birth. The 1992 amendment made either parent’s citizenship count for births on or after that date.2Central Government Acts (India). Citizenship Act 1955
For births outside India on or after December 3, 2004, there is an added step. The birth must be registered at an Indian consulate or mission within one year, or later with permission of the central government. Without that registration, the descent claim does not automatically vest, and families who assume citizenship passes on its own are often caught out.
Citizenship by Registration
Section 5 is the pathway for people who have ties to India but do not qualify by birth or descent. The main categories are:
- Persons of Indian origin who have lived in India for the required period, under Section 5(1)(a).
- Spouses of Indian citizens who have been ordinarily resident in India, under Section 5(1)(c).
- Minor children of Indian citizens, under Section 5(1)(d).
- OCI cardholders who have held the card for at least five years and been ordinarily resident in India for the twelve months before applying, under Section 5(1)(g).
For persons of Indian origin and for spouses, “ordinarily resident” means twelve continuous months of residence in India immediately before the application, plus at least six of the preceding eight years.3Indian Kanoon. Section 5 in The Citizenship Act, 1955 Persons of Indian origin apply on Form II, spouses on Form III, both through the Ministry’s online portal.4Ministry of Home Affairs. Indian Citizenship Online Portal
Citizenship by Naturalization
Section 6 is the route for foreign nationals with no ancestral tie to India. The central government may grant a certificate of naturalization to an applicant who satisfies the Third Schedule and is not an illegal migrant.5India Code. Citizenship Act 1955 – Citizenship by Naturalization
The residency requirement is heavy. You must have lived in India continuously for the twelve months immediately before applying, and during the fourteen years before that twelve-month period, you must have accumulated at least eleven years of residence in India. On top of physical presence, the Third Schedule requires good character, adequate knowledge of one of the twenty-two languages listed in the Eighth Schedule of the Constitution, and an intention to reside in India permanently or serve the Indian government.6Department of Official Language. Languages Included in the Eighth Schedule of the Indian Constitution
You must also give up your existing citizenship, because dual nationality is not allowed. The naturalization application uses Form VIII on the online portal.4Ministry of Home Affairs. Indian Citizenship Online Portal The government keeps discretion to waive certain conditions for people who have rendered distinguished service to science or art.
The 2019 Amendment and Who It Covers
The Citizenship (Amendment) Act, 2019 carved out an exception for members of six religious communities — Hindu, Sikh, Buddhist, Jain, Parsi, and Christian — who entered India from Pakistan, Bangladesh, or Afghanistan on or before December 31, 2014. These individuals are no longer treated as illegal migrants for purposes of the Act, even if they entered without valid documents or overstayed their visas.7Ministry of Home Affairs. The Citizenship (Amendment) Act, 2019
For the same group, the naturalization residency requirement drops from eleven years within the previous fourteen to five years of aggregate residence or government service in India.7Ministry of Home Affairs. The Citizenship (Amendment) Act, 2019 The implementing rules were notified in March 2024, and applications go through the same online citizenship portal along with a dedicated mobile application.
How to Apply and What Documents You Need
Every citizenship application starts at indiancitizenshiponline.nic.in. The portal issues a unique application ID, and the form depends on the route: Form II for persons of Indian origin, Form III for spouses, Form VIII for naturalization.4Ministry of Home Affairs. Indian Citizenship Online Portal
Whatever your route, expect to gather:
- Identity documents: birth certificate, valid foreign passport, and any residential permits or long-term visas.
- Proof of parentage for descent-based claims, including your parents’ marriage certificate and their Indian passports or citizenship proof.
- Residency evidence — for naturalization, detailed records of addresses and movements across the full fourteen-year look-back period.
- A language proficiency certificate from an educational institution or local authority for a language in the Eighth Schedule.
- A formal declaration renouncing your existing foreign nationality.
After the online submission, you print and sign the application, attach photographs, and deliver the physical file to the District Collector or Deputy Commissioner. The local office checks it for completeness and forwards it. Local police then verify your residence and conduct, and the Ministry of Home Affairs runs its own background check. Applicants who clear every stage take the Oath of Allegiance before a designated authority, pledging loyalty to the Indian Constitution. A false statement or discrepancy in the application can lead to rejection and prosecution under Section 17.
How Citizenship Ends
The Act provides three exits, from voluntary to involuntary.
Renunciation Under Section 8
An adult citizen of sound mind can file a declaration giving up Indian citizenship. Once the prescribed authority registers the declaration, the person stops being a citizen.8Indian Citizenship Online Portal. Declaration of Renunciation of Citizenship Under Section 8 of the Act If the declaration is filed during wartime, the government may delay registration in the national interest. A minor child of a person who renounces also loses citizenship, but can resume it within one year of turning eighteen.
Automatic Termination Under Section 9
If you voluntarily acquire citizenship of another country, your Indian citizenship ends automatically by operation of law. No government action is needed, and no grace period applies to the citizenship itself. This is the direct consequence of the ban on dual nationality, and it regularly catches people who assume they can hold two passports.
Deprivation Under Section 10
The central government can strip a naturalized citizen of citizenship on specific grounds: obtaining registration or naturalization by fraud or false representation, showing disloyalty to the Constitution, unlawfully communicating with an enemy during wartime, or being sentenced to imprisonment of at least two years within five years of registration or naturalization.1India Code. Citizenship Act 1955 Deprivation requires the government’s satisfaction that it serves the public good, and the person must receive notice and a right to be heard through an inquiry.
Penalties for False Statements
Section 17 makes it a criminal offence to knowingly make a false statement to obtain anything under the Act — a fraudulent application, forged documents, or misrepresented parentage or residence. The penalty is imprisonment up to five years, a fine up to ₹50,000, or both.1India Code. Citizenship Act 1955 Any citizenship obtained by fraud is also grounds for deprivation under Section 10, so prosecution and loss of status can follow the same act.
Surrendering the Indian Passport After Foreign Citizenship
This is where many people in the diaspora run into trouble. Once you acquire foreign citizenship, you may still travel on your Indian passport for a three-month grace period. After that, continued use of the Indian passport is a violation.9Embassy of India, The Hague, The Netherlands. Surrender of Indian Passport and Renunciation of Citizenship of India
You must surrender the Indian passport and obtain a Renunciation Certificate within three years. Missing the three-year window, travelling to India on the Indian passport after the grace period, or renewing the Indian passport after acquiring foreign citizenship each trigger penalties on a graded scale. The penalty rises with the number of years the passport was held, the number of travel uses, and any renewal, and it cannot be waived or reduced.10Consulate General of India, New York. FAQs on Renunciation
If Full Citizenship Is Out of Reach: OCI Status
Section 7A creates the Overseas Citizen of India cardholder category for members of the diaspora who cannot or do not want full citizenship. OCI is not citizenship. It is a special immigration status that gives a lifelong multiple-entry visa and certain economic rights without breaching the dual nationality bar.
Eligibility extends to former Indian citizens (anyone who was a citizen at or after the commencement of the Constitution, or was eligible to become one at that time), their children, grandchildren, and great-grandchildren, and the foreign-origin spouse of an Indian citizen or existing OCI cardholder, if the marriage has been registered and has lasted continuously for at least two years before applying.11Ministry of Home Affairs, Government of India. Frequently Asked Questions – Overseas Citizen of India No person whose parents, grandparents, or great-grandparents were citizens of Pakistan or Bangladesh is eligible for OCI.12India Code. Section 7A – Citizenship Act 1955
OCI cardholders can buy residential and commercial property, practice certain professions, and appear for national entrance exams under non-resident quotas, but they cannot vote, hold public office, buy agricultural or plantation land, or take up research, journalism, or missionary work without special permission.13Ministry of External Affairs. FAQ on Overseas Citizenship of India Scheme14Embassy of India, Doha. Property Related Matters of NRIs/OCI Card Holders in India
If Your Application Is Rejected
Section 15 gives any person aggrieved by an order under the Act (other than an order of the central government itself) the right to apply to the central government for revision. The application must be filed within thirty days of the order, though a late filing can be accepted for sufficient cause.15Indian Kanoon. The Citizenship Act, 1955 The central government’s decision on revision is final within the administrative process. Judicial review through the courts remains available in appropriate cases.