Vedic Literature > Mathematics > Error correcting code > Text of Rig Veda (RV)

Rig Veda Samhita happens not only to be the most ancient poetry in humankind, but also the principal religious composition of the Hindus.  It consists of 1017 hymns with a total of about ten thousand verses, mainly couplets, divided into ten mandalas (circles) or cantoes.  The language of these hymns is Vedic Sanskrit.  The entire work is metrical, each verse being in one of fifteen metres.  The composition is dated prior to 3400 B.C.E.  The composition was preserved by oral transmission, the teacher training his students in these chants.  The oldest manuscript of the Rig Veda Samhita is dated circa 500 CE.  Hence the methods used for preserving the integrity of the contents are based on the recitation methods only, not on the manuscript.

Hinduism was and is highly decentralized in its structure without any central organization charged with preserving the integrity of their composition.  Still all the manuscripts available and the chanting of experts from different parts of India are almost identical to one another. There are exactly two different versions differing from each one other in one syllable of one particular verse among the ten thousand verses [1]. Such an achievement, achieved no where else in the world (or even in India regarding their other books) is possible only because special chanting methods were developed so that the knowledge of the rules behind these chanting procedures allowed the reciter to detect the errors in his own chanting or the chanting of others.

Every syllable of every verse has to be intoned in one of three ways. The written text has intonation marks.  These intonations have to be preserved also. The intonation is based on a group of context sensitive rules. Preservation of the integrity of these intonations is one of the key features of the error correcting procedures. We will not discuss this topic here.

Most Rig Vedic verses are couplets, each line of couplet having a small number of words numbering say from three to about 10 or 15.  The text is available in two versions.  In the first version, Pada version, every word in the verse is clearly delineated and it is meant for study and error correction.  The second version is the Samhita version appropriate for music-like chanting where neighbouring words are combined by certain rules of euphony so that the entire verse can be chanted without any breaks.  For instance two distinct neighbouring words in the pada version like rama and isha such that ending vowel of first word is a and the beginning vowel of the second is i, then the two words together are chanted as ramesha, i.e. a and i together  becomes e.

The Pada version is recited without any break between words and without altering the identity of the words.

 

ERRORS

Error free recitation implies the correct recitation of every word in the appropriate order with the appropriate intonation on every syllable.  In this paper we focus only on the integrity of text of word and the order of words in a hymn.

Even though the reciters are careful by training, still one word x in a verse is recited unconsciously as x', where x' is a word phonetically close to x occurring in some other verse. For instance in RV there are many occurrences of words ending with pati, but only a small number ending with pata, leading to the type of error mentioned above.

Even though the order of words in a Sanskrit sentence is not relevant as far as meaning is concerned, still the preservation of the word order is crucial for preserving the sound quality.  So there are several methods of binding pairs of adjacent words in a verse. Still the transposition error i.e. flipping the order of a pair of adjacent words has to be taken care of.

There are also several special error families. For instance a common error is jumping from one word in a verse to completely another word in a completely different verse because of the similarity of the context.  We will mention ways of handling some of these error.

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