Sandhyavandanam (Sanskrit: ) is a religious practice performed by Hindu men initiated into the rite by the ceremony of Upanayanam, and instructed in its execution by a Guru (a qualified spiritual teacher). Sandhyavandanam is performed thrice daily and is accordingly known by a different name at each hour - in the morning, at noon, and in the evening . Sivaprasad Bhattacharyya defines it as the "Hindu code of liturgical prayers." The term is a Sanskrit compound consisting of, meaning "union", or… (More on Sandhyavandanam)