(a) Science: Ancient India’s advancement in metallurgy and technology has its great evidence in Iron Pillar situated in Delhi from last 1600 years, which is a great attraction for tourists all over the world.
(b) Arithmatic: Invention of zero is the greatest contribution of India in the field of arithmatic which was used by the Aryabhatta in 5th century. To express whole number with fraction use of a decimal is a revolutionary base of the presentation of decimal system to develop arithmatic. In fact decimal system invented in India, and spread in whole world through the medium of scriptures. After 7th century these were translated in Arabian language from Sanskrit.
(c) The two scriptures Leelavati and Sid- dhant Shiromani of Bhaskarachaiya are Amulya Nidhi (treasure) of the world. In arithmatic, at present use of Pythagorus theorem was propounded by ‘Bodhayan’ 2500 years ago which is known as Chitti Prameya.
(d) Astrology and Astronomy: Astrology was progressed in ancient times on the basis of Arithmatic. Aryabhatta was an astrologer as well as mathematician. He propounded the principle “The earth rotates on its axis around the sun from west to east, by finding planets and satellite. He explained the phenomenon of solar and lunar eclipse. Varahmihir, Kannad, Nagarjuna, Banbhatta were some other main ancient Indian astrologers and astronomers.
