To predict various chart are analyzed, commonly used charts are rashi chart navamsha chart and bhava .Rashi chart is considered to be sthoola or macro chart and for fine tuning other smaller division charts are observed. Mathematical calculation of these charts are available in any classical. Rashi chart indicates all the segment of life like health wealth profession spouse finance parent children etc. divisional chart are utilized to understand particular segment in detain. Like d10 or dashamsha chart 1/10^th division of rashi is meant for understanding all matter related to job profession up and down promotion etc. d16 is used to know about when a person can buy/sell vehicle. D4 related to properties , d3 to siblings. Nadi astrology uses up to 180 division called as nadi amsha.