21. A contract is not voidable because it was caused by a mistake as to any law in force in 1 [India]; but a mistake as to a law not in force in 1 [India] has the same effect as a mistake of fact.
*
*
*
*
*
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.
3 *
*
*
*
*