Ṝ

Aryabhata used Devanagari letters for numbers, very similar to the Greek numerals, even after the invention of Indian numerals. The ॄ sign was used to modify a consonant's value ×10⁶, but the vowel letter ॠ did not have an inherent value by itself.[1]

There are three different general early historic scripts - Brahmi and its variants, Kharoṣṭhī, and Tocharian, the so-called slanting Brahmi. Ṝ was not found as an independent vowel in Brahmi, only as a vowel mark for modifying a base consonant. Like all Brahmic scripts, Tocharian Ṝ has an accompanying vowel mark for modifying a base consonant. In Kharoṣṭhī, the only independent vowel letter is for the inherent A. All other independent vowels, including Ṝ are indicated with vowel marks added to the letter A.

Tocharian Rii

The Tocharian letter is derived from the short Brahmi Ṛ . The Tocharian Ṝ was very infrequently used, and only appears in the corpus in combination with a few base consonants.

Tocharian consonants with Ṝ vowel marks

Kr̄	Khr̄	Gr̄	Ghr̄	Cr̄	Chr̄	Jr̄	Jhr̄	Nyr̄	Ṭr̄	Ṭhr̄	Ḍr̄	Ḍhr̄	Ṇr̄
Tr̄	Thr̄	Dr̄	Dhr̄	Nr̄	Pr̄	Phr̄	Br̄	Bhr̄	Mr̄	Yr̄	r̄r	Lr̄	Vr̄
Śr̄	Ṣr̄	Sr̄	Hr̄

Devanagari independent Ṝ and Ṝ vowel sign.

Ṝ (ॠ) is a vowel of the Devanagari abugida. It ultimately arose from the Brahmi letter . Letters that derive from it are the Gujarati letter ૠ, and the Modi letter 𑘇.

Bengali independent Ṝ and Ṝ vowel sign.

Ṝ (ৠ) is a vowel of the Bengali abugida. It is derived from the Siddhaṃ letter , and is marked by the lack of horizontal head line and less geometric shape than its Devanagari counterpart, ॠ.

Gujarati independent Ṝ and Ṝ vowel sign.

Ṝ (ૠ) is a vowel of the Gujarati abugida. It is derived from the Devanagari Ṝ , and ultimately the Brahmi letter .

Telugu independent vowel and vowel sign Ṝ.

Ṝ (ౠ) is a vowel of the Telugu abugida. It ultimately arose from the Brahmi letter Ṝ. It is closely related to the Kannada letter ೠ. Like in other Indic scripts, Telugu vowels have two forms: and independent letter for word and syllable-initial vowel sounds, and a vowel sign for changing the inherent "a" of Telugu consonant letters. Ṝ is a non-attaching vowel sign, and does not alter the underlying consonant or contextually shape itself in any way.

Telugu Ṝ vowel sign on క, ఖ, గ, ఘ & ఙ: Kṝ, Khṝ, Gṝ, Ghṝ and Ngṝ.

Malayalam independent vowel and vowel sign Ṝ.

Ṝ (ൠ) is a vowel of the Malayalam abugida. It ultimately arose from the Brahmi letter , via the Grantha letter rr. Like in other Indic scripts, Malayalam vowels have two forms: an independent letter for word and syllable-initial vowel sounds, and a vowel sign for changing the inherent "a" of consonant letters. Vowel signs in Malayalam usually sit adjacent to its base consonant - below, to the left, right, or both left and right, but are always pronounced after the consonant sound. Some vowel signs, such as Ṝ, can also form a ligature with some consonants, although this is much more common in old-style paḻaya lipi texts than in the modern reformed paḻaya lipi orthography.

Malayalam Ṝ vowel sign on ക, ഖ, ഗ, ഘ, & ങ: Kṝ, Khṝ, Gṝ, Ghṝ and Ngṝ in paḻaya lipi.

Odia independent vowel and vowel sign Ṝ.

Ṝ (ୠ) is a vowel of the Odia abugida. It ultimately arose from the Brahmi letter , via the Siddhaṃ letter rr. Like in other Indic scripts, Odia vowels have two forms: an independent letter for word and syllable-initial vowel sounds, and a vowel sign for changing the inherent "a" of consonant letters. Vowel signs in Odia usually sit adjacent to its base consonant - below, to the left, right, or both left and right, but are always pronounced after the consonant sound. No base consonants are altered in form when adding a vowel sign, and there are no consonant+vowel ligatures in Odia.

The various Indic scripts are generally related to each other through adaptation and borrowing, and as such the glyphs for cognate letters, including Ṝ, are related as well.

Comparison of Ṝ in different scripts

Aramaic Kharoṣṭhī - Ashoka Brahmi Kushana Brahmi[lower-alpha 1] 𑀌 Tocharian[lower-alpha 2] - Gupta Brahmi 𑀌 Pallava - Kadamba - Bhaiksuki 𑰇 Siddhaṃ Grantha 𑍠 Cham - Sinhala ඎ Pyu / Old Mon[lower-alpha 3] - Tibetan ཨཷ Newa 𑐇 Ahom - Malayalam ൠ Telugu ౠ Burmese ၓ Lepcha - Ranjana Saurashtra ꢉ Dives Akuru - Kannada ೠ Kayah Li - Limbu - Soyombo[lower-alpha 4] - Khmer - Tamil - Chakma - Tai Tham - Meitei Mayek - Gaudi - Thai - Lao - Tai Le - Marchen - Tirhuta 𑒈 New Tai Lue - Tai Viet - Aksara Kawi - 'Phags-pa - Odia ୠ Sharada 𑆊 Rejang - Batak - Buginese - Zanabazar Square - Bengali-Assamese Takri - Javanese - Balinese - Makasar - Hangul[lower-alpha 5] - Northern Nagari - Dogri 𑠲 Laṇḍā - Sundanese - Baybayin - Modi 𑘇 Gujarati ૠ Khojki - Khudabadi - Mahajani - Tagbanwa - Devanagari Nandinagari 𑦧 Kaithi - Gurmukhi - Multani - Buhid - Canadian Syllabics[lower-alpha 6] - Soyombo[lower-alpha 7] - Sylheti Nagari - Gunjala Gondi - Masaram Gondi[lower-alpha 8] - Hanuno'o - Notes The middle "Kushana" form of Brahmi is a later style that emerged as Brahmi scripts were beginning to proliferate. Gupta Brahmi was definitely a stylistic descendant from Kushana, but other Brahmi-derived scripts may have descended from earlier forms. Tocharian is probably derived from the middle period "Kushana" form of Brahmi, although artifacts from that time are not plentiful enough to establish a definite succession. Pyu and Old Mon are probably the precursors of the Burmese script, and may be derived from either the Pallava or Kadamba script May also be derived from Devangari (see bottom left of table) The Origin of Hangul from 'Phags-pa is one of limited influence, inspiring at most a few basic letter shapes. Hangul does not function as an Indic abugida. Although the basic letter forms of the Canadian Aboriginal Syllabics were derived from handwritten Devanagari letters, this abugida indicates vowel sounds by rotations of the letter form, rather than the use of vowel diacritics as is standard in Indic abugidas. May also be derived from Ranjana (see above) Masaram Gondi acts as an Indic abugida, but its letterforms were not derived from any single precursor script.

Most Indic scripts are encoded in the Unicode Standard, and as such the letter Ṝ in those scripts can be represented in plain text with unique codepoint. Ṝ from several modern-use scripts can also be found in legacy encodings, such as ISCII.

Character information

Preview					ౠ		ୠ		ೠ		ൠ		ૠ
Unicode name	DEVANAGARI LETTER VOCALIC RR		BENGALI LETTER VOCALIC RR		TELUGU LETTER VOCALIC RR		ORIYA LETTER VOCALIC RR		KANNADA LETTER VOCALIC RR		MALAYALAM LETTER VOCALIC RR		GUJARATI LETTER VOCALIC RR
Encodings	decimal	hex	dec	hex	dec	hex	dec	hex	dec	hex	dec	hex	dec	hex
Unicode	2400	U+0960	2528	U+09E0	3168	U+0C60	2912	U+0B60	3296	U+0CE0	3424	U+0D60	2784	U+0AE0
UTF-8	224 165 160	E0 A5 A0	224 167 160	E0 A7 A0	224 177 160	E0 B1 A0	224 173 160	E0 AD A0	224 179 160	E0 B3 A0	224 181 160	E0 B5 A0	224 171 160	E0 AB A0
Numeric character reference	ॠ	ॠ	ৠ	ৠ	ౠ	ౠ	ୠ	ୠ	ೠ	ೠ	ൠ	ൠ	ૠ	ૠ
ISCII

Character information

Preview	Ashoka Kushana Gupta				𑍠
Unicode name	BRAHMI LETTER VOCALIC RR		SIDDHAM LETTER VOCALIC RR		GRANTHA LETTER VOCALIC RR
Encodings	decimal	hex	dec	hex	dec	hex
Unicode	69644	U+1100C	71047	U+11587	70496	U+11360
UTF-8	240 145 128 140	F0 91 80 8C	240 145 150 135	F0 91 96 87	240 145 141 160	F0 91 8D A0
UTF-16	55300 56332	D804 DC0C	55301 56711	D805 DD87	55300 57184	D804 DF60
Numeric character reference	𑀌	𑀌	𑖇	𑖇	𑍠	𑍠