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Section 25, Indian Succession Act defines 'Lineal Consanguinity', while Section 26 defines "Collateral Consanguinity'. Where the descent is by lineal consanguinity, one may call it a lineal descent, and the person so descending is a lineal descendant. But where the relationship is by collateral consanguinity, one may be descendant of the other, but he cannot be said to be lineally descended. That is, to our mind, the distinction between lineal descendant and descendant. It has nothing to do with the ability or otherwise of Hindu female to form a line of succession.

8. The same difference may be explained in other words. Lineal consanguinity is when two persons are connected in one straight line, whether descending or ascending, drawn from the propositus. Where the line is descending, the persons are lineal descendants. Collateral consanguinity is when two persons are connected by a descending line which is not a straight line.

Such persons may be descendants of each other, but will not be lineal descendants. In this view of the matter, a son will be a lineal descendant of the mother as well as of his grand-mother Irrespective of whether the mother or the grand-mother can form a line of succession under the Hindu Law. These notions of Hindu Law have not, in our opinion, to be imported ia interpreting the words 'lineal descendant',