This character is a Nonspacing Mark and is mainly used in the Bengali script.
The glyph is not a composition. It has no designated width in East Asian texts. In bidirectional text it acts as Nonspacing Mark. When changing direction it is not mirrored. U+09BC prohibits a line break before it. The glyph can be confused with one other glyph.
The Wikipedia has the following information about this codepoint:
The nuqta (Hindi: नुक़्ता, Urdu: نقطہ, romanized: nuqtā; sometimes also spelled nukta), is a diacritic mark that was introduced in Devanagari and some other Indic scripts to represent sounds not present in the original scripts. It takes the form of a dot placed below a character. This idea is inspired from the Arabic script; for example, there are some letters in Urdu that share the same basic shape but differ in the placement of dots(s) or nuqta(s) in the Perso-Arabic script: the letter ع ayn, with the addition of a nuqta on top, becomes the letter غ g͟hayn.
Representations
System
Representation (click value to copy)
Nº
2492
UTF-8
E0 A6 BC
UTF-16
09 BC
UTF-32
00 00 09 BC
URL-Quoted
%E0%A6%BC
HTML hex reference
়
Wrong windows-1252 Mojibake
◌়
Encoding: GB18030 (hex bytes)
81 31 DF 36
Adobe Glyph List
nuktabengali
RFC 5137
\u'09BC'
Bash and Zsh inside echo -e
\u09BC
C and C++
\u09BC
C#
\u09BC
CSS
\0009BC
Excel
=UNICHAR(2492)
Go
\u09BC
JavaScript
\u09BC
Modern JavaScript since ES6
\u{9bc}
JSON
\u09BC
Java
\u09BC
Lua
\u{9BC}
Matlab
char(2492)
Perl
"\x{9BC}"
PHP
\u{9bc}
PostgreSQL
U&'\09BC'
PowerShell
`u{9BC}
Python
\u09BC
Ruby
\u{9bc}
Rust
\u{9bc}
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