A contract is not voidable because it was caused by a mistake as to any law in force in1[India]; but a mistake as to a law not in force in1[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.
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1. The original words "British India" have successively been amended by the A.O. 1948 and the A.O. 1950 to read as above.
2. Paragraph 2, inserted by the A.O. 1937, omitted by the A.O. 1950.
3. The second Illustration to section 21 repealed by Act 24 of 1917, section 3 and Schedule II.