BECK index Vedas and Upanishads Harappan Civilization Rig Veda Sama Veda Yajur Veda Atharva Veda Brahmanas Aranyakas Early Upanishads Kena, Katha, Isha, and Mundaka Later Upanishads Harappan Civilization Although they did use some writing with pictographic symbols at Mohenjo-daro, they were not extensive nor alphabetic nor have they been deciphered yet, and the Indo-European Sanskrit which did ...