Duraisamy is neither a natural guardian nor a de jure guardian and only a defacto guardian, he had no right to dispose of the minor's interest in the joint family property. However, when it is found that the property belonging to Venupillai had not been partitioned amongst the legal heirs and when it is further found that it is only Duraisamy, who as the eldest adult member was managing the joint family and accordingly, it is seen that he has alienated the suit property inclusive of the minor's interest therein for legal necessity as above discussed and in such view of the matter, merely because, Duraisamy is the adult member of the family, it cannot be stated that he had no competency to alienate the minor's interest in the joint family property. On the other hand, as per Section 12 of the Act, when the joint family property is under the management of adult member of the family, there is no need for appointment of any guardian for the interest of the minors in respect of such undivided interest and therefore, the position of law read in conjunction with Sections 6 and 12 would go to show that in the light of the aforesaid Apex Court decision, Duraisamy is all competent to alienate the suit property in