Doesn't India disallow dual citizenship? Wikipedia [1] claims that Article 9 of the Indian Constitution forbids it (note that the Overseas Citizenship of India designation is not actually citizenship). So denaturalization would legally leave the person stateless. Making a person stateless against their will is considered a serious violation of human rights, regardless of what they have done.

[1]: https://en.wikipedia.org/wiki/Indian_nationality_law

Fair point, although there is no way that "year and a day" is enough punishment for this.

If he's a citizen, that probably violates the Equal Protection clause.

That does happen for lying on the immigration and naturalization forms. We have have deported and denaturalized Nazi concentration camp guards before.

There's a reason why denaturalization usually only happens if you perjured your way into citizenship: it's an extremely severe action that is not meant to be a punishment, but rather to correct a mistake (according citizenship to somebody who in reality failed to meet certain criteria).

Denaturalization as punishment is something you see in totalitarian ethno-states, not democracies.

No in France you can loose your acquired nationality if you participated to terrorism against France. Was voted in the aftermath of the Paris attacks, though wasn't of much use since all the terrorists of those attacks were natives of either France or Belgium.

I wonder what happens if someone like Le Pen ever gets in charge. Being able to de-naturalize "terrorists" sounds like a pretty serious power that could be abused.

..and Australia, if you have been sentenced for a serious crime (more than 3yrs, iirc). (0)

Hell, we don't even particularly care if we make them stateless. (1)

(0) https://www.sbs.com.au/news/new-laws-will-strip-australian-e...

(1) https://mobile.abc.net.au/news/2019-01-08/neil-prakash-defin...

Germany allows it to, but only in case of dual citizenship and people returning from ISIS-supportive groups in foreign countries.

What about the UK and Shamima Begum losing UK citizenship?

Mistakenly nationalized someone without the character UK citizenship demands. (EDIT: /s)

She was born in the UK.