Sonia tasked Rahul and three others with the responsibility of looking after the day-to-day affairs of the party. Other members of the group are defence minister A K Antony, Congress general secretary Dwivedi and Sonia's political secretary Ahmed Patel. Patel and Antony are among Sonia's most trusted confidants, while Dwivedi is the general secretary in charge of the organization.
Clearly in the event of any untoward event Rahul is going to lead the congress . Everybody knows he has been asked to reorganize and rejuvenate the party in every state . However hardly any place he has been successful in accomplishing his mission . Supposing there is quarrel / dissension in the party Defence minister on Rahul side is a strong support to suppress the rebellion .:-)))