Dr. A.P.J. Abdul Kalam was the 11th President of India from 2002-2007. He was known as the 'Missile Man of India' for his work on developing India's first satellite launch vehicle and ballistic missile technology as a scientist working on India's space and missile programs. He was a popular president loved by Indians for his simplicity, humility, and dedication to the country. Dr. Kalam established institutions to promote education and training and often encouraged youth to work hard and pursue their dreams. He believed in religious harmony and was a symbol of secularism in India.