Aryabhata ( 476–550 AD)>>>>The Great Mathematician and Astronomer of India. He started place Value system with Zero.He discovered zero. He the first to come out with the truth that the earth rotates on its axis. He worked out the area of a triangle. His exact words were, “ribhujasya phalashariram samadalakoti bhujardhasamvargah” which translates “for a triangle, the result of a perpendicular with the half side is the area”. He came out with explanations of the solar and lunar eclipses. He solved quadratic equations. He worked out the value of pi. He calculated the volume of a sphere. Aryabhatta described the model of the solar system, where the sun and moon are each carried by epicycles that in turn revolve around the Earth. He also talks about the number of rotations of the earth, describes that the earth rotating on its axis, the order of the planets in terms of distance from earth. Aryabhatta described the solar and lunar eclipses scientifically. Aryabhatta described that the moon and planets shine by light reflected from the sun. Aryabhatta calculated the rotation of the earth with respect to the stars as 23 hours, 56 minutes and 4.1 seconds. Aryabhatiya covered arithmetic, algebra, plane trigonometry, and spherical trigonometry, which contains continued fractions, quadratic equations, sums-of-power series, and a table of sines. Aryabhatta And His Contribution To Science & Mathematics was immense.