Section 13 in The Hindu Succession Act, 1956
Section 13 of Hindu Succession Act “Computation of degrees”
Section 13. (1) For the purpose of determining the order of succession among agnates or cognates, the relationship shall be reckoned from the intestate to the heir in terms of degrees of ascent or degrees of descent or both, as the case may be,
(2) Degrees of ascent and degrees of descent shall be computed inclusive of the intestate.
(3) Every generation constitutes a degree either ascending or descending.