Besides, the birth time is affected by changes in time zone, wartime, local meantime, local standard time, daylight savings time, etc. When the birth time is inaccurate, the Kundali is also approximate. If one wishes to make use of higher Vargas, such as Shashthyamsa, or lower-level Dasas, such as the Prana or Deha Dasa, the birth time must be precise. Therefore, the recorded birth time must be rectified using the rules stated in the Jyotish canon.

Even though this is an important topic, a structured method of rectifying the birth time is hardly found. The Jyotish classical texts contain several principles to verify the Lagna; however, there is a general lack of a systematic approach to bring them together under one umbrella. The book provides a structured approach to integrate these principles to arrive at the rectified birth time.