Dr: A.P.J Abdul kalam

Avul Pakir Jainulabdeen Abdul Kalam usually referred to as A. P. J. Abdul Kalam, is an Indian politician and scientist who served as the 11th President of India. Apart from being a professor of aerospace engineering, he is also famous for his contribution to missile technology for India, pertaining to which he has been honoured Bharat Ratna award, India's highest civilian honour.
He was born and brought up at Rameswaram in Tamil Nadu, being born in a poor family he had to work his way through average grades and financial hard ships, completing his studies in aerospace engineering at Madras Institute of Technology (MIT – Chennai). He joined Aeronautical Development Establishment of Defence Research and Development Organisation (DRDO), India and is known for his many contributions to Aeronautical and Missile technology of India.
A. P. J. Abdul Kalam was elected president of India in 2002, defeating Lakshmi Sahgal, and was supported by both National Democratic Alliance (NDA) and BJP, then major political party of India. After serving office as a president till 2007 he is now a visiting professor at Indian Institute of Management, Ahmedabad and Indian Institute of Management, Indore; Chancellor of Indian Institute of Space Science and Technology Thiruvananthapuram, a professor of Aerospace Engineering at Anna University (Chennai), JSS University (Mysore), and an adjunct/visiting faculty at many other academic and research institutions across India and is involved in philanthropic work as on 2012.