Indian Contract Act, Ch II Effect of mistakes as to law

A contract is not voidable because it was caused by a mistake as to any law in force in 6[India]; but a mistake as to a law not in force inĀ 6[India] has the same effect as a mistake of fact.

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Illustration

A and B make a contract grounded on the erroneous belief that a particular debt is barred by the Indian Law of Limitation; the contract is not voidable.