U+A811 "ꠑ" Syloti Nagri Letter Ttho Unicode Character

U+A811 "ꠑ" Syloti Nagri Letter Ttho is a consonant used in the Syloti Nagri script, which is traditionally employed for writing the Sylheti language spoken primarily in the Sylhet region of Bangladesh and parts of northeast India. Representing the voiceless retroflex plosive sound /ʈʰ/, this letter is distinct from the dental t sounds found in many other Indo-Aryan scripts, marking an important phonetic contrast in Sylheti orthography. U+A811 is part of the Syloti Nagri block within the Unicode Standard, included to support the digital representation and preservation of the Sylheti language's unique writing system, which experienced a decline in the 20th century but is seeing renewed cultural interest.