Solution:Avul Pakir Jainulabdeen Abdul Kalam was an Indian Scientist and administrator, who also served as the 11th president of India from 2002 to 2007. He played a vital role in the development of Integrated Guided Missile Development Programme (IGMDP) in India. Nag, Agni, Prithvi, Trishul and Akash missiles are developed under this program. For his significant contribution in this field, he was awarded 'Bharat Ratna' in 1997. He is famously regarded as 'Missile Man of India'.