In the verbal duelling that he prefers, Narendra Modi might just have met his match. Hours after he made an astonishingly personal attack on new central minister Shashi Tharoor, calling his wife a "50-crore girlfriend" at an election rally in Himachal Pradesh, he had an answer from Mr Tharoor who said, "My wife is priceless, beyond any imaginary 50 crores but you have to be able to love someone to understand that and we'll have to see if he is capable of understanding that."