This character is a Other Letter and is mainly used in the Thaana script.
The glyph is not a composition. It has no designated width in East Asian texts. In bidirectional text it is written as Arabic letter from right to left. When changing direction it is not mirrored. The word that U+0781 forms with similar adjacent characters prevents a line break inside it.
The Wikipedia has the following information about this codepoint:
The letter Shaviyani (ށ - formerly Rhaviyani) is the second letter of the Thaana abugida - the writing system used in the Dhivehi language of the Maldives and Minicoy Island.
Representations
System
Representation (click value to copy)
Nº
1921
UTF-8
DE 81
UTF-16
07 81
UTF-32
00 00 07 81
URL-Quoted
%DE%81
HTML hex reference
ށ
Wrong windows-1252 Mojibake
Þ
Encoding: GB18030 (hex bytes)
81 31 A6 35
RFC 5137
\u'0781'
Bash and Zsh inside echo -e
\u0781
C and C++
\u0781
C#
\u0781
CSS
\000781
Excel
=UNICHAR(1921)
Go
\u0781
JavaScript
\u0781
Modern JavaScript since ES6
\u{781}
JSON
\u0781
Java
\u0781
Lua
\u{781}
Matlab
char(1921)
Perl
"\x{781}"
PHP
\u{781}
PostgreSQL
U&'\0781'
PowerShell
`u{781}
Python
\u0781
Ruby
\u{781}
Rust
\u{781}
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