A. P. J. Abdul Kalam
When he was president, he was popularly known as the People's President. He was awarded the Bharat Ratna, India's highest civilian honour in 1997. He has also been a professor (of aerospace engineering). Kalam is the first Chancellor of the Indian Institute of Space Science and Technology Thiruvananthapuram (IIST). He is called as the "Missile Man" of India.