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why we do need ol chiki script ?
The problems with Indic Scripts:
The problems of correctly representing Santali sounds in Indic scripts, viz., Bengali, Devanagari & Oriya are explained here. Firstly, in Indic language, some phonetics like checked consonants / k', c', t', p'/ do not exist. If one attempts to suppress the inherent vowel of consonants /KA/, /CA/, /TA/ & /PA/ of any Indic script, it would only produce /k/, /c/, /t/ & /p/, respectively. There are no mechanisms to represent these unique Santali sounds. Secondly, there is a difficulty of representing the Santali vowels. Currently, the Santali language does use eight or nine vowels that can be short or long and nasalized, whereas the Indic scripts provide only six vowels. By modifying the vowels of Indic script using diacritic marks, the santali vowels can be represented to some extent, but when such vowels are used in the beginning of a word, they tend to approximate with closest vowels of the Indic script. Thirdly, there is no mechanism to represent the Glottal stop of Santali sounds which Santals use very frequently.
The problems with Roman Script:
A Brief Introduction to Ol Chiki Script:
This script is also known as Ol Cemet', Ol script, Ol ciki Script and also Ol. In Santali, Ol means writing and Cemet' means learning . So, Ol Cemet' means the learning of writing. Ol Cemet' is the title of the book, written by Pandit Raghunath Murmu for teaching the Ol Chiki to the beginners(primer). Ol Chiki is alphabetic, and does not share any of the syllabic properties of the other Indic scripts. It is used for writing Santali which belongs to the Munda group languages of the Austro-Asiatric family. One of the interesting feature of the Ol Chiki script is that it makes use of signs and symbols long familiar to the Santals. The very ingenuity in shaping the symbols of the letters and arranging the letters in the script has been greatly helpful in transmission of the script. A large number of words in the Santali language are derived from natural sounds. Letters of Ol Chiki script are also derived from the physical environment and what surrounds the people - hills, rivers, trees, birds, bees, plough, sickle - the list is endless . Norman Zide, an eminent linguist in his work (Zide, 1996) says, The shapes of the letters are not arbitrary, but reflect the names for the letters, which are words, usually the names of objects or actions representing conventionalized form in the pictorial shape of the characters. For example, the word At means earth and the shape of letter /AT/ derived from the round shape of earth. Similarly /UD/ means mushroom and so is the shape of the letter /UD/.
On commenting about Ol Chiki, Zide (1996) observes, One ingenious - scientific and unique feature of Ol Cemet that certainly increases the efficiency of writing Santali is the deglottalizing ohot'(AHAD). This neatly preserves the morphophonemic relationship between the glottalized and the voiced equivalent: The former occurs in words at certain word-internal preconsonantal junctures, whereas the latter occurs prevocalically, but never morpheme-initially in these alterations. Thus /OK/ is the name of a letter that represents both /k'/ and /g/. Two further diacritics include a horizontal loop added at the top right of the character for aspiration of consonants, and a raised dot for vowel nasalization.
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Ol Chiki:
The Ol Chiki letters are arranged in a matrix of 6 by 5, in which the six letters in the first column of the matrix are vowels, and the rest 24 letters are consonants. However, the five letters of the third column represent dual consonants, and this, eventually, helps to represent 29 consonants with the help of diacritic Ahad. Ol Chiki gives 5 basic diacritics, and the combination of diacritics Mu Tudag and Gahla Tudag gives rise to another diacritic, called Mu-Gahla Tudag. The matrix of Ol Chiki letters are listed with transliteration of alphabets, with pronounciation in brackets and their sounds in bracelets.
The diacritic Mu Tudag functions like Devnagari chandrabindu, and it is used for nasalization of vowels. Gahla Tudag is used for generating additional vowels, and Rela is used for generating extra length in the vowels. Pharka is used as separator and Ahad has special properties, that will be discussed later.

Ol Chiki writing system is alphabetic, and so, it is better understood using Roman script. Normally, in Santali language, all words begin with either a vowel or single consonant. However, it is observed that inside a word, a combination of two consonants may occur, and, sometimes even three. But then one of these is a nasal. It is worth mentioning that, in Santali language, the occurrence of nasals is extremely regular. These are even distinguishable in word final position.
Apart from the consonants mentioned above, Santali language does use other aspirated consonants. An aspirated consonant is generated by juxtaposing /OH/, which functions more like English /h/, immediately after another consonant. For example : /dh/ of Dhanbad, is generated using /EDD/ followed by /OH/. It should be noted that, in Ol Chiki, it is /OH/(and not /IH/) that is used to generate the aspirated consonants, and this is in contrast to the English language, where no such distinction is made. The consonant /OH/, when placed immediately after the unaspirated consonants t/AT/, g/AG/, k/AAK/, j/AAJ/, c/UCH/, d/UD/, p/EP/, D/EDD/, t/OTT/, b/OB/ generates the corresponding aspirated consonants.
Here is an example, where /OH/ is used along with /EN/ as in the word, /nhate/ which means 'this side'. This sound is a bit voiceless. This is a prolongation of /n/ along with /h/ sound, and it is an example of glottal stop. A point to be noted here is that this glottal stop is generated in combination of /IH/ with Ahad, but it is normally written in a shorter form using /OH/. Although there are few words in Santali language that use the glottal stop, but the use of such words are very frequent in Santali language. Here is a list of words where glottal stop is used.

This diacritic is used for the nasalization of vowels. As already mentioned that in Santali language, all vowels and diphthongs may be nasalized. It works in the same way as the chandrabindu of Devnagari script. When it is placed immediately after a vowel, the vowel gets nasalized. The example of nasalized vowels that are used in the words of Santali language are given below.

Gahla Tudag is used to generate the additional vowels from the following vowels, viz., open vowel /o/(first vowel), /a/, and /e/. The vowel /a/+/Gahla Tudag/ is the most frequently used vowel, and there is no exact English equivalent for the same. This is a half open central vowel and its pronunciation is approximately equivalent to that of /a/ in ago. The vowel /e/+/Gahla Tudag/ is pronounced as in /a/ of English word gate and it is open /e/(half open front vowel). But the pronunciation of the vowel /o/+/Gahla Tudag/ is very nearly the same as that of the original vowel, and it occurs in a few words only.
The Mu-Gahla Tudag indicates that the new vowel generated by the Gahla Tudag is nasalized.

In Santali language, all vowels may be short or longs and it is Rela that is used to lengthen the pronunciation of vowels. For example, in the pair of words /hit/ and /heat/ (or /bit/ and /beat/ ) in English, the former uses a short vowel , but the later uses a long vowel. In case of Ol Chiki, the long vowels are pronounced much longer than those of English, and a long vowel corresponding to a vowel is indicated by immediately following the vowel with the diacritic Rela. The Rela is extensively used in the adverb of Santali language. Here is a list of words that use the rela and their pronunciations and meanings.

In Ol Chiki, the letters, /AG/, /AAJ/, /UD/, and /OB/ are semi-consonants. These semi-consonants become consonants (voiced equivalents), when they are immediately followed by a vowel or Ahad. This generates dual sounds from these semi-consonants depending on whether they are immediately followed by a vowel/Ahad or not. This is a feature unique to Ol Chiki, which is not observed in any other writing system.
Take the example of /AG/: it produces two sounds, viz., /k'/ and /g/. The use of /k'/ is in words like /amak'/your/ or /senok'/go/. The /k'/ is not fully released in these circumstances. The pronunciation of this consonant is a bit unique to Santals, and it is in-between /k/ and /g/. It starts with /k/ and glides towards /g/. Similar is the case with /AAJ/, which gives /c'/ and /j/ (Here /c/ is unreleased /ch/ of church ). Similarly, /UD/ gives /t'/ and /d/, and /OB/ gives /p'/ and /b/.
The diacritic Pharka is used very frequently in Santali writings and works as separator in two ways. First, it is used to separate two consonants of similar paired words as in /sujh-bujh/understanding/. Second, it is used to separate a consonant from the following vowel. It is generally used to prevent the semi-consonants from becoming full consonants and these cases occur in a large number of verb formations such as /menak'-a/have/Verb/, /hijuk'-a/come/Verb/ etc. Also, there is another situation, where nasal consonant /ANG/, is separated by Pharka from the following vowel.
The main punctuation mark used is the single vertical line "|", and it marks the end of a sentence. There are other familiar punctuation marks which are also used in Santali language. The names of punctuation marks as given in the grammar book Ranal written by Pandit Raghunath Murmu are as given in the following table.
The Ol Chiki gives hand writing letters for fast writing. It is called /usA.ra ol/. The hand writing letters consist of all letters which are vowels and consonants, and the letters which are formed in combination of /IH/ and four semi-consonants , /AG/, /AAJ/, /UD/, /OB/ with Ahad. In normal writing, the combination of /IH/ with Ahad is not found, as it is generally written in a shorter form that is /OH/.

Ol Chiki uses decimal system, and the symbol for basic digits 0-9 are as follows:

/AT/ : The shape of Earth.
/AG/ : The shape of mouth during vomiting which produces the
/ANG/: Blowing air.
/AL/ : Writing.
/AA/ : The shape of working in the field with a spade.
/AAK/: Sound of Swan or shape of a bird.
/AAJ/ : The shape of a person pointing towards a third person with
/AAM/: The shape of a person pointing towards a second
/AAW/: Opening lips.
/I/ : Bending tree .
/IS/ : The shape of plough.
/IH/ : The shape of hand ups.
/INY/ : The shape of a person pointing towards himself or herself with
/IR/ : The shape of a sickle used for cutting or reaping(IR).
/U/ : The shape of a vessel used for preparing food.
/UCH/: The shape of a peak of a mountain which is usually high.
/UD/ : The shape of mushroom.
/UNN/: The picture of a flying bee which makes this sound.
/UY/ : The shape of a man bending towards ground to cut something.
/ E/ : Overflowing rivers changing course.
/EP/ : A person receiving with both hands.
/EDD/: The shape of a man with two legs stretching towards his
/EN/ : The picture of thrashing grains with two legs.
/ERR/: A picture of a path that turns to avoid an obstruction or a
/O/ : The shape of mouth when sounding this.
/OTT/: The hump of a camel.
/OB/ : Curly hair.
/OV/ : Nasalized.
/OH/ : The figure of a man throwing something with one hand.


