The most successful man in india not only as a scientist but also as a human....!!!

After graduating from Madras Institute of Technology (MIT – Chennai) in 1960, Kalam joined Aeronautical Development Establishment of Defense Research and Development Organization (DRDO) as a scientist. Kalam started his career by designing a small helicopter for the Indian Army, but remained unconvinced with the choice of his job at DRDO. Kalam was also part of the INCOSPAR committee working under Vikram Sarabhai, the renowned space scientist.In 1969, Kalam was transferred to the Indian Space Research Organization (ISRO) where he was the project director of India's first indigenous Satellite Launch Vehicle (SLV-III) which successfully deployed the Rohini satellite in near earth orbit in July 1980. Joining ISRO was one of Kalam's biggest achievements in life and he is said to have found himself when he started to work on the SLV project. Kalam first started work on an expandable rocket project independently at DRDO in 1965. In 1969, Kalam received the government's approval and expanded the program to include more engineers.
In 1963–64, he visited Nasa's Langley Research Center in Hampton Virginia, Goddard Space Flight Center in Greenbelt, Maryland and Wallops Flight Facility situated at Eastern Shore of Virginia.During the period between the 1970s and 1990s, Kalam made an effort to develop the Polar SLV and SLV-III projects, both of which proved to be success.
Kalam was invited by Raja Ramanna to witness the country's first nuclear test Smiling Buddha as the representative of TBRL, even though he had not participated in the development, test site preparation and weapon designing. In the 1970s, a landmark was achieved by ISRO when the locally built Rohini-1 was launched into space, using the SLV rocket. In the 1970s, Kalam also directed two projects, namely, Project Devil and Project Valiant , which sought to develop ballistic missiles from the technology of the successful SLV programme.Despite the disapproval of Union Cabinet, Prime Minister Indira Gandhi allotted secret funds for these aerospace projects through her discretionary powers under Kalam's directorship. Kalam played an integral role convincing the Union Cabinet to conceal the true nature of these classified aerospace projects.His research and educational leadership brought him great laurels and prestige in 1980s, which prompted the government to initiate an advanced missile program under his directorship.Kalam and Dr. V. S. Arunachalam, metallurgist and scientific adviser to the Defense Minister, worked on the suggestion by the then Defense Minister, R. Venkataraman on a proposal for simultaneous development of a quiver of missiles instead of taking planned missiles one by one.R Venkatraman was instrumental in getting the cabinet approval for allocating 388 crore rupees for the mission, named Integrated Guided Missile Development Program (I.G.M.D.P) and appointed Kalam as the Chief Executive.Kalam played a major part in developing many missiles under the mission including Agni, an intermediate range ballistic missile and Prithvi, the tactical surface-to-surface missile, although the projects have been criticised for mismanagement and cost and time overruns.He was the Chief Scientific Adviser to the Prime Minister and the Secretary of Defence Research and Development Organisation from July 1992 to December 1999. The Pokhran-II nuclear tests were conducted during this period where he played an intensive political and technological role. Kalam served as the Chief Project Coordinator, along with R. Chidambaram during the testing phase. Photos and snapshots of him taken by the media elevated Kalam as the country's top nuclear scientist.
In 1998, along with cardiologist Dr.Soma Raju, Kalam developed a low cost Coronary stent. It was named as "Kalam-Raju Stent" honouring them. In 2012, the duo, designed a rugged tablet PC for health care in rural areas, which was named as "Kalam-Raju Tablet".