Born and raised in Rameswaram in Tamil Nadu on October 15, 1931, Kalam, who is known for having a unique style, joined the Defence Research and Development Organisation (DRDO) after studying physics and aerospace engineering after graduating from Madras Institute of Technology.
Mainly focusing on research in defence and space arena, he later involved himself in the India's missile programme. His contribution to the ballistic missile and launch vehicle technology earned him the named as the “Missile Man of India”.
Kalam, who received seveeral prestigious awards including Bharat Ratna, played a crucial role when India tested its nuclear weapons at Pokhran in 1998 when the Vajpayee government was in power.
A vegetarian bachelor, Kalam was quoted as saying that like most of the technology he spearheaded, he himself was “Made in India”, having never been trained abroad.