ZERO india invented the Zero without which theres no binary system science and computers The earliest recorded date was in Sankheda Copper Plate from Gujarat dating 585 CE It is explained in Brahma -Phuta Sidanata and was carried over to Arabs in 7th century and entered europe in 8th century CE
however the Zero was also explained in Sanskrit texts of Shunya in 4th century BCE and Pingalas Chandah Sutra on 2nd Century
Did you know geometry comes from Gyaametiti or measyuring earth and Trignometry from Trikonamithi meaning measuring Triangular forms both used by indians in 1000 BCE before euclid described them