After the National Democratic Alliance's seemingly unbelievable victory in Bihar and the Mahagathbandhan's shattering defeat there are two questions that are crying out for an analytical answer - why do the BJP and Narendra Modi keep winning? Why do Congress and Rahul Gandhi keep losing? These are the key questions posed in this interview with Yogendra Yadav, one of India's well-known political analysts and a former psephologist who is today the National Convenor of the Bharat Jodo Abhiyan.