U+11357 "𑍗" Grantha Au Length Mark Unicode Character

U+11357 "𑍗" Grantha Au Length Mark is a diacritical mark used in the Grantha script, an ancient writing system of South India primarily employed for writing Sanskrit and classical Tamil texts. This specific mark functions as a vowel length indicator, modifying the vowel 'au' to denote a longer or more sustained pronunciation, effectively serving as a graphical extension to the base Grantha character. It belongs to the Grantha block within Unicode and is encoded for use in historical and liturgical documents where precise phonetic representation is required.