A ready reckoner for names and Rasis of Nadi Amsas

A ready-reckoner for determining the name and Rasi of the Nadi amsa of a given Nirayana longitude is presented. The comparatively very small Longitude interval used in the Nadi amsa requires that the accuracy in the time of birth should be of the order of seconds for interpreting a horoscope based on it. It is argued that the names of the Zodiac signs, Aries, Taurus, etc., often used for the Rasi names, Mesha, Vrishabha, etc., in the Astrological literature available in English are not quite appropriate, since the Zodiac signs and the corresponding intended Rasis do not represent the same Longitude intervals on the Ecliptic, and hence, at times, may lead to some confusion.