This character is a Nonspacing Mark and is mainly used in the Dogra 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+1183A prohibits a line break before it.
The Wikipedia has the following information about this codepoint:
The nuqta (Hindi: ΰ€¨ΰ₯ΰ€ΰ€Όΰ₯ΰ€€ΰ€Ύ, Urdu: ΩΩΨ·Ϋ, romanized: nuqtΔ; 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 ΨΉ ayn, with the addition of a nuqta on top, becomes the letter ΨΊ gΝhayn.
Representations
System
Representation (click value to copy)
NΒΊ
71738
UTF-8
F0 91 A0 BA
UTF-16
D8 06 DC 3A
UTF-32
00 01 18 3A
URL-Quoted
%F0%91%A0%BA
HTML hex reference
𑠺
Wrong windows-1252 Mojibake
Γ’βΕΓ°β ΒΊ
Encoding: GB18030 (hex bytes)
90 34 F5 32
RFC 5137
\u'1183A'
Bash and Zsh inside echo -e
\U0001183A
C and C++
\U0001183A
C#
\U0001183A
CSS
\01183A
Excel
=UNICHAR(71738)
Go
\U0001183A
JavaScript
\uD806\uDC3A
Modern JavaScript since ES6
\u{1183a}
JSON
\uD806\uDC3A
Java
\uD806\uDC3A
Lua
\u{1183A}
Matlab
char(71738)
Perl
"\x{1183A}"
PHP
\u{1183a}
PostgreSQL
U&'\+01183A'
PowerShell
`u{1183A}
Python
\U0001183A
Ruby
\u{1183a}
Rust
\u{1183a}
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