Persons Voluntarily Acquiring Citizenship of a Foreign State Not to Be Citizens
No person shall be a citizen of India by virtue of article 5, or be deemed to be a citizen of India by virtue of article 6 or article 8, if he has voluntarily acquired the citizenship of any foreign State.
What this Article actually means
How it shows up in everyday life
This is the constitutional root of why India doesn't recognise dual citizenship in the full legal sense, unlike some other countries — if you take up another country's citizenship voluntarily, your Indian citizenship ends by operation of this Article, regardless of your personal intent to 'keep both'.
Read alongside this one
Quick answers about Article 9
Does becoming a Permanent Resident (Green Card holder) of another country trigger this Article?
What about the OCI card — does that mean I have dual citizenship?
The text above reproduces Article 9 of the Constitution of India as amended to date, for general educational reference. It is public-domain legislative text, but we recommend cross-checking the authoritative version at legislative.gov.in or india.gov.in before relying on it for a legal matter. The explanation, examples and FAQs are general information, not legal advice — consult a qualified advocate for guidance on your specific situation.