Director general of MAPCOST Dr Navin Chandra said that ancient India had an advanced understanding of mathematical concepts. The decimal system and zero are India’s invaluable gifts to the world. He said that our ancient sages knew that the earth goes round the sun and the moon revolves around the earth. They had discovered the means for measuring the distance between planets. He said that software designed by Indian engineers commands the highest price in the global market. The DG said mathematics is the mother of all sciences.