The number of years representing the maximum period of life in the case of men is obtained by putting together the figures denoting the years given by the Sun and other planets. These latter, some say upon the authority of great teachers like Parasara, should be supplemented by the number of years for the Lagna (deduced from the Lagna ashtakavarga) in order to get the Ayus conformably with the conditions of any horoscope that may be under examination.