President Ram Nath Kovind, Vice President Venkaiah Naidu, Prime Minister Narendra Modi on Monday paid floral tributes to former Prime Minister Atal Bihari Vajpayee on his death anniversary. They were joined by several Union Ministers including Amit Shah and BJP national president JP Nadda at Sadaiv Atal, the memorial to Vajpayee in Delhi, in paying respects to the late Prime Minister.