This text was fully considered by the Privy Council in Vellaiyappa vs Natarajan(1) and the conclu sions derived therefrom were summarized as follows : "Their Lordships are of opinion that the illegitimate son of a Sudra by a continuous concubine has the status of a son, and that he is a member of the family; that the share of inheritance given to him is not merely in lieu of maintenance, but in recognition of his status as a son; that where the father has left no separate property and no legitimate son, but was joint with his collaterals, the illegitimate son is not entitled to demand a partition of the joint family property in their hands, but is entitled as a member of the family to maintenance out of that property." This statement of the law, with which we agree, may be supplemented by three other well settled principles, these being firstly, that the illegitimate son does not acquire by birth any interest in his father 's estate and he cannot therefore demand partition against his father during the latter 's lifetime; secondly, that on his father 's death, the illegitimate son succeeds as a coparcener to the separate estate of the father along with the legitimate son(s) with a right of survivorship and is entitled to enforce partition against the legitimate son(s); and thirdly, that on a parti tion between a legitimate and an illegitimate son, the illegitimate son takes only one half of What he would have taken if he was a legitimate son.