New Delhi, Aug 16: President Ram Nath Kovind on Thursday expressed his condolences on the death of former Prime Minister Atal Bihari Vajpayee."Extremely sad to hear of the passing away of Shri Atal Bihari Vajpayee, our former Prime Minister and a true Indian statesman. His leadership, foresight, maturity and eloquence put him in a league of his own. Atalji, the Gentle Giant, will be missed by one and all," he tweeted.Vajpayee died at the All India Institute of Medical Sciences (AIIMS) in Delhi. He was 93.