"19. The plaintiff is bound to prove the partition and also to specify, what are the shares, specifically allotted to his family by way of oral partition. According to the plaintiff's proof affidavit, he admits that since 1970 his father had been in exclusive enjoyment of the property and also patta had been issued. Similarly other brother also if oral partition pleaded is true, would enjoy the properties allotted to them exclusively. But, on the side of the defendant, Ex.B4 has been marked. Ex.B4 is, certified copy of sale certificate given by the Joint II SubRegistrar, Kallakurichi during the year 1974. On perusal of Ex.B4, the properties stated to be with the Official receiver are all shown as undivided property. And on perusal of each description of property, only 1/3rd share of Ponnusamy Udayar has been brought for sale. Hence, as per the evidence of the plaintiff, if only oral partition had been effected during the year 1969, and if the entire suit property had been allotted to the share of plaintiff's father Irusappa Udayar, who is alleged to have been in exclusive possession and enjoyment of the suit property, why 1/3rd share of the suit property has been brought for court sale, with regard to Ponnusamy Udayar's share? Each and every description of property in Ex.B4, relates only to 1/3rd share of Ponnusamy Udayar. Hence, the contention of the plaintiff is that, since 1970, the properties were exclusively enjoyed by way of partition has been negatived by Ex.B4, which is dated 1974. Hence, the version of the defendant that, 1/3rd share in each property was allotted to each brother has become a more probable situation in view of Ex.B4. Moreover, plaintiff's father Irusappa Udayar has purchased 0.02 cents in suit Survey No.119/5, when Ponnusamy Udayar's share had come for court sale. If Irusappa Udayar has been allotted the entire suit property, why he has not taken any steps to remove the suit item from sale by the official receiver. In contra, he has purchased the 0.02 cents. There is no pleading or evidence on the side of the plaintiff to explain the reason for purchase of 0.02 cents by way of court sale. Hence, the plaintiff is estopped from pleading that each of the brother were not allotted 1/3rd share in the suit property. Moreover, why the plaintiff's father has not taken any