Prime Minister Narendra Modi on Tuesday condoled the death of Nagaland Assembly Speaker Vikho-o Yhoshu, describing him as a diligent leader who was devoted towards development of the state. Yhoshu (67) died on Monday at a hospital in Mumbai after battling lung cancer for several months.Prime Minister Narendra Modi on Tuesday condoled the death of Nagaland Assembly Speaker Vikho-o Yhoshu, describing him as a diligent leader who was devoted towards development of the state. Yhoshu (67) died on Monday at a hospital in Mumbai after battling lung cancer for several months.