Writing system from the Brahmic family of scripts
Telugu script (), an abugida from the Brahmic family of scripts, is used to write the Telugu language, a Dravidian language spoken in the Indian states of Andhra Pradesh and Telangana as well as several other neighbouring states. It is one of the official scripts of the Indian Republic. The Telugu script is also widely used for writing Sanskrit texts and to some extent the Gondi language. It gained prominence during the Eastern Chalukyas also known as Vengi Chalukya era. It also shares extensive similarities with the Kannada script.
History.
The Brahmi script used by Mauryan kings eventually reached the Krishna River delta and would give rise to the Bhattiprolu script found on an urn purported to contain Lord Buddha's relics. Buddhism spread to East Asia from the nearby ports of Ghantasala and Masulipatnam (ancient Maisolos of Ptolemy and Masalia of Periplus).Kadamba script developed by the Kadamba dynasty was derived from the Brahmi script and later evolved into the Telugu-Kannada script after the 7th century. The Telugu and Kannada scripts then separated by around 1300 CE. The Muslim historian and scholar Al-Biruni referred to both the Telugu language as well as its script as "Andhri".
Vowels.
Telugu uses sixteen vowels, each of which has both an independent form and a diacritic form used with consonants to create syllables. The language makes a distinction between short and long vowels.
The independent form is used when the vowel occurs at the beginning of a word or syllable, or is a complete syllable in itself (example: a, u, o). The diacritic form is added to consonants (represented by the dotted circle) to form a consonant-vowel syllable (example: ka, kr̥, mo). does not have a diacritic form, because this vowel is already inherent in all of the consonants. The other diacritic vowels are added to consonants to change their pronunciation to that of the vowel.
Examples:
Consonants.
Subscript letters are used in consonant clusters and geminate consonants.
Marginal and archaic consonants.
The letter for a voiced alveolar plosive is found in some inscriptions, it is thought to have been distinguished from the trill ఱ (ṟa) intervocalically rarely; its mostly found after a nasal as in మూన్ౚు (mūnḏu).
Other diacritics.
There are also several other diacritics used in the Telugu script. ్ mutes the vowel of a consonant, so that only the consonant is pronounced. ం represents a corresponding class nasal sound when followed by a consonant from that class (i.e., the last column of the corresponding consonant row for the first five rows of the consonants table); when not followed by anything or by a consonant from the first five rows of the consonant table, it represents a true nasal sound. ఁ represents a historically used that is no longer pronounced, or a nasalized vowel when transliterating other languages (e.g., Hindi) into the Telugu script. ః adds a voiceless breath after the vowel or syllable it is attached to.
Examples:
Marginal and archaic diacritics and signs.
◌఼: Telugu nuqta.
ఽ: Telugu avagraha.
ౝ: Nakara pollu.
ఀ: The combining candrabindu nasal vowel diacritic of the Telugu script.
ఄ: Combining anusvara above.
౷: Siddham sign.
౿: Tuumu sign.
Places of articulation.
There are five classifications of passive articulations:
 Kaṇṭhya: Velar
 Tālavya: Palatal
 Mūrdhanya: Retroflex
 Dantya: Dental
 Ōshtya: Labial
Apart from that, other places are combinations of the above five: 
 Dantōsthya: Labio-dental (E.g.: v)
 Kantatālavya: E.g.: Diphthong e
 Kantōsthya: labial-velar (E.g.: Diphthong o)
There are three places of active articulation:
 Jihvāmūlam: tongue root, for velar
 Jihvāmadhyam: tongue body, for palatal
 Jihvāgram: tip of tongue, for cerebral and dental
 : lower lip, for labial
The attempt of articulation of consonants (Uccāraṇa Prayatnam) is of two types,
 Bāhya Prayatnam: External effort
 Spṛṣṭa: Plosive
 Īshat Spṛṣṭa: Approximant
 Īshat Saṃvṛta: Fricative
 Abhyantara Prayatnam: Internal effort
 Alpaprānam: Unaspirated
 Mahāprānam: Aspirated
 Śvāsa: Unvoiced
 Nādam: Voiced
Articulation of consonants.
Articulation of consonants is the logical combination of components in the two prayatnams. The below table gives a view upon articulation of consonants.
The Telugu script has generally regular conjuncts, with trailing consonants taking a subjoined form, often losing the talakattu (the v-shaped headstroke). The following table shows all two-consonant conjuncts and one three-consonant conjunct, but individual conjuncts may differ between fonts. These are referred in Telugu as vattulu (వత్తులు).
Consonants with vowel diacritics.
The consonants with vowel diacritics are referred to in the Telugu language as guṇintālu (). The word "Guṇita" refers to 'multiplying oneself'. Therefore, each consonant sound can be multiplied with vowel sounds to produce vowel diacritics. The vowel diacritics along with their symbols and names are given below.
The following table contains the consonants with vowel diacritics in the Telugu language.
Numerals.
NOTE: , , and are used also for ;templatestyles src="Fraction/styles.css" / ;1⁄64, ;templatestyles src="Fraction/styles.css" / ;2⁄64, ;templatestyles src="Fraction/styles.css" / ;3⁄64, ;templatestyles src="Fraction/styles.css" / ;1⁄1024, etc. and , , and are also used for ;templatestyles src="Fraction/styles.css" / ;1⁄256, ;templatestyles src="Fraction/styles.css" / ;2⁄256, ;templatestyles src="Fraction/styles.css" / ;3⁄256, ;templatestyles src="Fraction/styles.css" / ;1⁄4096, etc.
Unicode.
Telugu script was added to the Unicode Standard in October, 1991 with the release of version 1.0.
The Unicode block for Telugu is U+0C00–U+0C7F:
In contrast to a syllabic script such as katakana, where one Unicode code point represents the glyph for one syllable, Telugu combines multiple code points to generate the glyph for one syllable, using complex font rendering rules.
iOS character crash bug.
On February 12, 2018, a bug in the iOS operating system was reported that caused iOS devices to crash if a particular Telugu character was displayed. The character is a combination of the characters "జ", "్", "ఞ", "ా" and The Zero-Width Non-Joiner character which looks combined like this "జ్ఞా". Apple confirmed a fix for iOS 11.3 and macOS 10.13.4.
References.
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