U+0B56 "ୖ" Oriya Ai Length Mark Unicode Character

U+0B56 "ୖ" Oriya Ai Length Mark is a combining diacritical mark used in the Oriya (Odia) script, which is employed to write the Odia language primarily in the Indian state of Odisha. This mark is specifically applied to modify a vowel sound, functioning as a length marker for the vowel sign for "ai" (vowel sign U+0B48 ୈ) by extending its duration, thereby indicating a longer or more emphasized pronunciation in syllables. It appears as a small, raised horizontal line attached to the top of the consonant or vowel sign it follows, and its correct rendering is essential for accurate orthography and phonetic representation in written Odia.