He was in Shillong to give a lecture to the students of IIM. He collapsed while delivering the lecture and immediately rushed to hospital where he died. As per the available reports, he suffered a major cardiac attack.
I was just becoming normal after the shockful incidence of terrorist attack in the Denanagar town of Punjab and this news came forward. He served as the President of India from 2002 to 2007. He was also known as the missile-man because of his extraordinary work for Indian missile system.