Meru Prastara is a triangular array of numbers. Pingala’s Chandah Sutra (C 200 BCE) deals with it for finding the combination of ‘n’ syllables taken 1, 2, 3, … at a time. This is used to calculate various possible permutations and combinations, which was one of the favorite mathematical pursuits of Vedic Hindus as well as the Jainas. In Vedic literature one finds various Vedic meters, gayatri, anustubh, brihati, tristubh, jagati, to mention a few, with different numbers of syllables. The varnasangita, the music of sound variations of the Vedic and post-Vedic composers, depended only on the variation of two sounds – guru (long) and laghu (short). So they were concerned with finding different possible types of meters from those of varying syllables by changing the long and short sounds within each syllable group. Halayudha (10 th century CE) in his commentary on Chandah Sutra of Pingala, elaborated upon the meru-prastara (pyramidal scheme) technique for finding the number of combina