Sub-Sub-dasa or Sub-Sub-Period  calculation 
Main Dasa
SubDasa/Bhukti
 Sub-Sub-dasa 
Find   
 Sub-Sub-dasa period 
     

                                                                       There are 9 Main Dasas, under which there are 9 Sub dasas and 9 sub sub dasas. Total combinations --- 9*9*9 =729