The battle for Karnataka is widely seen as a contest between Karnataka Chief Minister Siddaramaiah, who is hoping for a second term in power, and Prime Minister Narendra Modi, who is spearheading the BJP's aggressive campaign in the state. But in an exclusive interview, Mr Siddaramaiah has told NDTV that the Prime Minister is not a popular figure in the state, and his real rival is BS Yeddyurappa, the BJP candidate for the state's top job.