Mookka Kone v. Ammakutti Ammal AIR 1928 Mad 299 (FB), it was held that where custom is set up to prove that it is at variance with the ordinary law, it has to be proved that it is not opposed to public policy and that it is ancient, invariable, continuous, notorious, not expressly forbidden by the legislature and not opposed to morality or public policy. It is not disputed that even under the old Hindu law, adoption during the lifetime of a male issue was specifically prohibited. In addition, I have observed that such an adoption even if made would be contrary to the concept of adoption and the purpose thereof, and unreasonable. Without entering into the arena of controversy whether there was such a custom, it can be said that even if there was such a custom, the same was not a valid custom.