Chandragupta murya is the son of the senapati of maghadh.as by cheating the maghadh king , padhama nadha take overrule on magadha and due to this the father os chandragupta murya was became against with padhamananda.and he fought many battles with him. at last the father of chandragupta was kill by padhamanan’s son .dhananan . and he is very cruel about its public.on the other side dhananan torcer his public so channakya a bharman oppose this and said dhananan that , he will finesh you set new king here who will care his public .and give each every traning to his student chandragupta. . after very struggle he first won gandhar without fight by using its improbity.and at last by working hard using mind they won magadha.and then chandragupta overrule whole magadha