He has not been caught taking a bribe. Nor has he, or his party president Jaya Jaitly been filmed fixing a defence deal.
All political parties collect money.
They never particularly bother where it comes from. If it were corrupt, it would be collecting crores and leaving a few lakhs here and there in tips and gratuities. So far, so good. A meeting with the Raksha Mantri of India. With the fifth largest army, the fourth largest airforce and a growing blue water navy at its command.