On Thursday, the Munjal family of Hero group took a key step in realigning its businesses, with Sunil Kant Munjal stepping down as the joint MD from flagship Hero MotoCorp. Coming within a year of the demise of founder and group patriarch Brijmohan Lal Munjal, the move is seen as part of a larger succession plan, critical for long-term strategy. Business Standard looks at some large corporate groups and how they handled their successions: