Avul Pakir Jainulabdeen Abdul Kalam (Tamil: அவுல் பகீர் ஜைனுலாப்தீன் அப்துல் கலாம்) usually referred to as A. P. J. Abdul Kalam, was one of India's most distinguished scientists. He was an Aerospace engineer, professor, and chancellor of the Indian Institute of Space Science and Technology (IIST), who served as the 11th President of India from 2002 to 2007. During his term as President, he was popularly known as the People's President. Before his term as India's president, he worked as an aeronautical engineer with DRDO (Defence Research and Development Organisation) and ISRO (Indian Space Research Organisation). He was responsible for the development of India's first satellite launch vehicle, the SLV-3 He is popularly known as the Missile Man of India for his work on development of ballistic missile and space rocket technology. Kalam played a pivotal organisational, technical and political role in India's Pokhran-II nuclear test in 1998, the first since the original nuclear test by India in 1974. He has the unique honour of receiving honorary doctorates from thirty universities and the country's three highest civilian honours - Padma Bhushan (1981), Padma Vibhushan (1990) and Bharat Ratna (1997). Former President Dr. A. P. J. Abdul Kalam, who became popular as 'People's President', passed away on July 27th, 2015 at the age of 83 in Shillong, India.