Source: Noto Sans Kannada

U+0C80 Kannada Sign Spacing Candrabindu

U+0C80 was added to Unicode in version 9.0 (2016). It belongs to the block U+0C80 to U+0CFF Kannada in the U+0000 to U+FFFF Basic Multilingual Plane.

This character is a Other Letter and is mainly used in the Kannada script.

The glyph is not a composition. It has a Neutral East Asian Width. In bidirectional context it acts as Left To Right and is not mirrored. In text U+0C80 behaves as Alphabetic regarding line breaks. It has type Other Letter for sentence and Alphabetic Letter for word breaks. The Grapheme Cluster Break is Any.

The Wikipedia has the following information about this codepoint:

Chandrabindu (IAST: candrabindu, lit. 'moon dot' in Sanskrit) is a diacritic sign with the form of a dot inside the lower half of a circle. It is used in the Devanagari (ँ), Bengali-Assamese (ঁ), Gujarati (ઁ), Odia (ଁ), Telugu (ఁ), Javanese ( ꦀ) and other scripts.
It usually means that the previous vowel is nasalized.
In Hindi, it is replaced in writing by anusvara when it is written above a consonant that carries a vowel symbol that extends above the top line.
In Classical Sanskrit, it seems to occur only over a lla conjunct consonant, to show that it is pronounced as a nasalized double l, which occurs if -nl- have become assimilated in sandhi.
In Vedic Sanskrit, it is used instead of anusvara to represent the sound anunasika when the next word starts with a vowel. It usually occurs where in earlier times a word ended in -ans.
Unicode encodes chandrabindu and chandrabindu-like characters for a variety of scripts:

U+1B01 ᬁ BALINESE SIGN ULU CANDRA

U+1B00 ᬀ BALINESE SIGN ULU RICEM

U+0981 ঁ BENGALI SIGN CANDRABINDU

U+11C3C 𑰼 BHAIKSUKI SIGN CANDRABINDU

U+11000 𑀀 BRAHMI SIGN CANDRABINDU

U+0901 ँ DEVANAGARI SIGN CANDRABINDU

U+A8F2 ꣲ DEVANAGARI SIGN SPACING CANDRABINDU

U+A8F3 ꣳ DEVANAGARI SIGN CANDRABINDU VIRAMA

U+0900 ऀ DEVANAGARI SIGN INVERTED CANDRABINDU

U+1193C 𑤼 DIVES AKURU SIGN CANDRABINDU

U+11301 𑌁 GRANTHA SIGN CANDRABINDU

U+0A81 ઁ GUJARATI SIGN CANDRABINDU

U+0A01 ਁ GURMUKHI SIGN ADAK BINDI

U+0A70 ੰ GURMUKHI TIPPI

U+A980 ꦀ JAVANESE SIGN PANYANGGA

U+11080 𑂀 KAITHI SIGN CANDRABINDU

U+0C80 ಀ KANNADA SIGN SPACING CANDRABINDU

U+0C81 ಁ KANNADA SIGN CANDRABINDU

U+11F00 𑼀 KAWI SIGN CANDRABINDU

U+1C34 ᰴ LEPCHA CONSONANT SIGN NYIN-DO

U+1C35 ᰵ LEPCHA CONSONANT SIGN KANG

U+0D01 ഁ MALAYALAM SIGN CANDRABINDU

U+11CB6 𑲶 MARCHEN SIGN CANDRABINDU

U+11443 𑑃 NEWA SIGN CANDRABINDU

U+0B01 ଁ ODIA SIGN CANDRABINDU

U+A873 ꡳ PHAGS-PA LETTER CANDRABINDU

U+A8C5 ꣅ SAURASHTRA SIGN CANDRABINDU

U+111CF 𑇏 SHARADA SIGN INVERTED CANDRABINDU

U+115BC 𑖼 SIDDHAM SIGN CANDRABINDU

U+0D81 ඁ SINHALA SIGN CANDRABINDU

U+0C01 ఁ TELUGU SIGN CANDRABINDU

U+0C00 ఀ TELUGU SIGN COMBINING CANDRABINDU ABOVE

U+0F82 ྂ TIBETAN SIGN NYI ZLA NAA DA

U+0F83 ྃ TIBETAN SIGN SNA LDAN

U+114BF 𑒿 TIRHUTA SIGN CANDRABINDU

U+11A35 𑨵 ZANABAZAR SQUARE SIGN CANDRABINDU

U+11A36 𑨶 ZANABAZAR SQUARE SIGN CANDRABINDU WITH ORNAMENT

U+11A37 𑨷 ZANABAZAR SQUARE SIGN CANDRA WITH ORNAMENT
There is also a general-purpose combining diacritical mark COMBINING CANDRABINDU code point U+0310 (◌̐), but that is intended for use with Latin letters in transliteration of Indic languages.

Representations

System	Representation
Nº	3200
UTF-8	E0 B2 80
UTF-16	0C 80
UTF-32	00 00 0C 80
URL-Quoted	%E0%B2%80
HTML-Escape	ಀ
Wrong windows-1252 Mojibake	à²

Elsewhere

Complete Record

Property	Value
Age	9.0 (2016)
Unicode Name	KANNADA SIGN SPACING CANDRABINDU
Unicode 1 Name	—
Block	Kannada
General Category	Other Letter
Script	Kannada
Bidirectional Category	Left To Right
Combining Class	Not Reordered
Decomposition Type	None
Decomposition Mapping	Kannada Sign Spacing Candrabindu
Lowercase	✘
Simple Lowercase Mapping	Kannada Sign Spacing Candrabindu
Lowercase Mapping	Kannada Sign Spacing Candrabindu
Uppercase	✘
Simple Uppercase Mapping	Kannada Sign Spacing Candrabindu
Uppercase Mapping	Kannada Sign Spacing Candrabindu
Simple Titlecase Mapping	Kannada Sign Spacing Candrabindu
Titlecase Mapping	Kannada Sign Spacing Candrabindu
Case Folding	Kannada Sign Spacing Candrabindu
ASCII Hex Digit	✘
Alphabetic	✔
Bidi Control	✘
Bidi Mirrored	✘
Composition Exclusion	✘
Case Ignorable	✘
Changes When Casefolded	✘
Changes When Casemapped	✘
Changes When NFKC Casefolded	✘
Changes When Lowercased	✘
Changes When Titlecased	✘
Changes When Uppercased	✘
Cased	✘
Full Composition Exclusion	✘
Default Ignorable Code Point	✘
Dash	✘
Deprecated	✘
Diacritic	✘
Emoji Modifier Base	✘
Emoji Component	✘
Emoji Modifier	✘
Emoji Presentation	✘
Emoji	✘
Extender	✘
Extended Pictographic	✘
FC NFKC Closure	Kannada Sign Spacing Candrabindu
Grapheme Cluster Break	Any
Grapheme Base	✔
Grapheme Extend	✘
Grapheme Link	✘
Hex Digit	✘
Hyphen	✘
ID Continue	✔
ID Start	✔
IDS Binary Operator	✘
IDS Trinary Operator and	✘
Ideographic	✘
Indic Mantra Category	—
Indic Positional Category	NA
Indic Syllabic Category	Bindu
Jamo Short Name	—
Join Control	✘
Logical Order Exception	✘
Math	✘
Noncharacter Code Point	✘
NFC Quick Check	Yes
NFD Quick Check	Yes
NFKC Casefold	Kannada Sign Spacing Candrabindu
NFKC Quick Check	Yes
NFKD Quick Check	Yes
Other Alphabetic	✘
Other Default Ignorable Code Point	✘
Other Grapheme Extend	✘
Other ID Continue	✘
Other ID Start	✘
Other Lowercase	✘
Other Math	✘
Other Uppercase	✘
Prepended Concatenation Mark	✘
Pattern Syntax	✘
Pattern White Space	✘
Quotation Mark	✘
Regional Indicator	✘
Radical	✘
Sentence Break	Other Letter
Soft Dotted	✘
Sentence Terminal	✘
Terminal Punctuation	✘
Unified Ideograph	✘
Variation Selector	✘
Word Break	Alphabetic Letter
White Space	✘
XID Continue	✔
XID Start	✔
Expands On NFC	✘
Expands On NFD	✘
Expands On NFKC	✘
Expands On NFKD	✘
Bidi Paired Bracket	Kannada Sign Spacing Candrabindu
Bidi Paired Bracket Type	None
East Asian Width	Neutral
Hangul Syllable Type	Not Applicable
ISO 10646 Comment	—
Joining Group	No_Joining_Group
Joining Type	Non Joining
Line Break	Alphabetic
Numeric Type	None
Numeric Value	not a number
Simple Case Folding	Kannada Sign Spacing Candrabindu
Script Extension
Vertical Orientation	R