1. 1. A.P.J. Abdul Kalam 

2. C.V. Raman 

3. Srinivasa Ramanujan 

4. Albert Einstein 

5. Isaac Newton 

6. Sir Alexander Fleming.

2. 1. A.P.J. Abdul Kalam: He was the former President of India. He played a pivotal role in the development of Missile and Nuclear Weapons. He got Hoover medal. He is the recipient of Bharat Ratna award. 

2. C.V. Raman: He was the first Indian to receive the Nobel Prize in Physics for his ‘Raman Effect’. He was also the first Asian and the first non-white to receive the Nobel Prize. He discovered the Raman Effect with equipment worth only Rs. 200/- and limited facilities in his laboratory. He was the first Indian scholar who studied wholly in India. 

3. Srinivasa Ramanujan: He was a great Indian mathematician. He made extraordinary contributions to mathematical analysis, number theory and infinite series. 

4. Albert Einstein: He was a great German physicist. His Theory of Relativity showed that mass and energy are different forms of each other.

5. Isaac Newton: He discovered that sunlight is a mixture of the colours of a rainbow. He built a telescope through which he saw the moons of Jupiter. He discovered the law of gravitational force. 

6. Sir Alexander Fleming: Sir Alexander Fleming was a Scottish biologist, pharmacologist and botanist. His best-known discoveries are the enzyme, lysozyme in 1923 and the antibiotic substance penicillin in 1928, for which he shared the Nobel Prize in Physiology or Medicine in 1999. It was a discovery that changed the course of history. The active ingredient in penicillin turned out to be an infection-fighting agent of enormous potency. When it was finally recognized for what it was, the most efficacious life-saving drug in the world, penicillin would alter forever the treatment of bacterial infections.