The term "Nigada" refers to a specific category of Vedic mantras used in yagas or sacrifices. Within the broader classification of Vedic mantras, which includes rik, yajus, and saman, the nigadas occupy a unique role. Riks: These are metrical compositions, often poetic in nature, forming the core of Vedic hymns and prayers. Yajus: Yajus mantras are complete sentences in prose. They contain instructions, prayers, or invocations necessary for the proper conduct of Vedic rituals. Samans: Saman mantras are set to music and are sung during Vedic rituals, adding a melodic aspect to the chanting. Nigadas: Also known as "praishas," these are specific words or phrases addressed by one priest, typically the adhvaryu, to another priest, often spoken loudly. The purpose of nigadas is to prompt or instruct the other priest to perform a particular action or ritual task. For example, a nigada might instruct, "Approach the vessel containing the holy waters. (‘proksha...