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Article 265
Part XII — Finance, Property, Contracts and Suits · Constitution of India
Article 265
Taxes not to be imposed save by authority of law. No tax shall be levied or collected except by authority of law.
In plain wordsThe government cannot take a single rupee from you as tax unless a law passed by the legislature allows it. Any tax demand without a law behind it is illegal, which makes this one of the strongest money protections a citizen has.