The word Yantra has first come up in Indian literature that means instrument, machine or device. This word has been used in astrology, rasastra, Ayurveda, mathematics, etc. There is a 22nd chapter called ‘Yantradhyaya’ in Brahmasfutasiddhanta composed by Brahmagupta. Names of some instruments mentioned in Sanskrit literature Yantraraj, Dolayantra, Tiriyakpatnayantra, Damruyantra, Dhruvabhramayantra, Patnayantra, Radhayantra, Dhrayantra, […]









