Conditional Dasha is a special medicine and takes precedence over general medicine. Shodashottary Dasha is a special Dasha and is applicable to fifty percent of horoscopes. It must be used to double check the timing of events. This Dasha is applicable on divisional charts. This will improve the predictive skills of both practicing and amateur astrologers. About the Author Shri. Vinod Prakash Goel is a former officer of the Indian Engineering Services and has served the Ministry of Defence, Government of India. He also held senior managerial positions with private companies in India and abroad before setting up a business in Engineering, Manufacturing and Contracting. Shri. Goel is an M.Tech from IIT Kharagpur and B.Sc. Mechanical Engineering (Honors) from Banaras Hindu University. In the year 1999 and 2000, he was awarded the Gold Medal for Jyotish Alankar and Jyotish Acharya at the Institute of Astrology, Bhartiya Vidya Bhavan, New Delhi.