Synopsis Originally in Tamil, this is based on a Nadi by a sage named Suka. The original was said to have contained 18,000 verses, or 1500 per ascendant. In his Prolegomena, Santhanam says he has rearranged & retold the original in a more independent & appropriate manner, at the same time following the foot steps of the Tamil version. (pg. 4) Chapter 1 is Santhanam's own introduction to the text, it covers astrological basics, including listing all 150 of the Nadiamsas. According to Santhanam, there is a great deal of unique literature in Tamil, most of which has yet to come to light.