Chandas
Quick answer: Chandas is the Sanskrit science of poetic metre. Learn laghu and guru weights, Pingala's ganas, the great Vedic metres and how chandas became Hindi chhand.
Chandas is the ancient Indian science of poetic metre, the discipline that measures verse by the number and weight of its syllables. In Sanskrit learning it stands as one of the six Vedangas, the supporting studies a student mastered so the Vedas could be recited without error, alongside grammar, phonetics, etymology, ritual and astronomy. The word does double duty: it names the study of metre as a whole, and it names individual metres themselves, so a hymn can be described as composed in the Gayatri chandas much as an English poem might be called iambic pentameter.
For students of Hindi and Sanskrit literature the term is unavoidable, because the entire vocabulary of Hindi prosody descends from it. Matra, varna, laghu, guru, gana, yati: every one of these workhorse exam terms comes straight out of the chandas tradition. For practising poets the payoff is different but just as real. A little chandas trains the ear the way scales train a musician, and once you can hear syllable weight you never quite unhear it.
What the Word Actually Means
Scholars usually trace chandas to a Sanskrit root associated with covering or pleasing, and the older texts use the word in two distinct senses. In the Vedic period, chandas could mean the sacred metrical language of the hymns themselves. The grammarian Panini uses it this way: when he marks a rule as applying in chandas, he means Vedic usage as opposed to everyday speech. Over time the narrower sense won out, and chandas settled into meaning prosody, the body of rules by which verse is measured and classified.
The founding treatise is the Chhandahshastra of Pingala, usually placed around the second or third century BCE, though scholars argue about the date. Pingala catalogued metres by their patterns of light and heavy syllables, and he worked out systematic procedures for listing every possible pattern of a given length. Historians of mathematics still study those procedures, because they resemble ideas we now express with binary numbers. For a poet, though, the takeaway is simpler: by Pingala's time, Indian verse already possessed a complete and remarkably precise measuring system.
Laghu and Guru: The Two Weights
Everything in chandas rests on a single distinction. A syllable is either laghu, light, or guru, heavy. A laghu carries a short vowel, the a, i or u sounds, and is counted as one matra, one beat of time. A guru is anything that takes longer to say: a syllable with a long vowel, or a short syllable that is followed by a conjunct consonant, an anusvara or a visarga. A guru counts as two matras.
Try it on real words. The word 'kamal', lotus, is three light syllables in a row: ka, ma, la. The word 'kaala', black, is two heavy ones. In 'kantha', throat, the first syllable becomes heavy even though its vowel is short, because the nasal sound and the cluster after it stretch the time it takes to speak. Once you have these rules, any line in Sanskrit or Hindi can be scanned, syllable by syllable, into a string of lights and heavies.
The Ganas: Pingala's Eight Building Blocks
Writing out long strings of laghu and guru marks is clumsy, so the tradition groups syllables into threes. There are exactly eight possible patterns of three syllables, and each has a one-letter name: ya, ma, ta, ra, ja, bha, na and sa. The ma gana is three heavies, the na gana three lights, the ja gana runs light heavy light, and so on through all eight.
Students have memorised them for centuries through a famous mnemonic string, yamaataaraajabhaanasalagam. Start at any gana's own syllable, read that syllable and the two that follow, and the vowel lengths spell out the gana's pattern. It is one of the neatest memory devices in any literary tradition, a ten-syllable word that contains an entire system. Classical metres are then defined compactly: name the ganas in order, add any loose light or heavy syllables at the end, and the whole line is specified.
The Great Vedic Metres
The oldest layer of chandas classifies the metres of the Vedas by total syllable count. Seven principal metres anchor the system: Gayatri with 24 syllables in three lines of eight, Ushnik with 28, Anushtubh with 32, Brihati with 36, Pankti with 40, Trishtubh with 44 in four lines of eleven, and Jagati with 48 in four lines of twelve.
Two of these went on to extraordinary careers. Gayatri gave its name to the most recited verse in the tradition, the Gayatri mantra of the Rigveda. Anushtubh, with its four compact lines of eight syllables, evolved into the classical shloka, the flexible narrative metre that carries the Mahabharata and much of the Ramayana. Trishtubh, meanwhile, is the quiet workhorse: more hymns of the Rigveda use it than any other metre.
From Sanskrit Kavya to Hindi Chhand
Classical Sanskrit poets took the system further, developing hundreds of fixed syllabic metres called varna vrittas, each with a set sequence of lights and heavies. Kalidasa composed the whole of the Meghaduta in mandakranta, a slow seventeen-syllable metre whose very gait suggests a cloud drifting north. Praise verses and benedictions favoured the grand nineteen-syllable shardulavikridita, the tiger's play.
Hindi inherited all of this and reorganised it. The Hindi word chhand is simply chandas worn smooth by time, and Hindi prosody splits its metres into two great families: varnik chhands, which count syllables, and matrik chhands, which count matras of time. The doha and chaupai that carry Kabir and Tulsidas belong to the matrik family; the thundering ghanakshari of the riti period is varnik. Knowing the parent system makes both families far easier to learn.
How to Study Chandas Without Drowning
If you are preparing for a BA or MA paper, resist the urge to memorise fifty metres badly. Learn the guru rules cold, learn the eight ganas, and then master a shortlist deeply: Gayatri, Anushtubh and Trishtubh from the Vedic layer, plus whatever your syllabus names from the classical and Hindi layers. Examiners reward correct scansion of one verse far more than a list of half-remembered names.
If you write poetry, treat chandas as ear training rather than law. Scan a few lines aloud each day, in any language you love, and mark the weights. You will start noticing why one line of your own drags and another one lands. Metre is not a cage; it is a stethoscope pressed to the heartbeat of a line.
What poets can take from this
- Learn the guru checklist as one breath: long vowel, anusvara, visarga, or any vowel followed by a conjunct consonant.
- Scan aloud; syllable weight lives in the mouth long before it appears on the page.
- Memorise yamaataaraajabhaanasalagam once and you carry all eight ganas in ten syllables for life.
- For every new metre, learn one model verse by heart and recite it until the tune is automatic.
- In exams, state the syllable or matra count per line first, then the pause, then scan your example, in that order.
- Practise on film lyrics and nursery rhymes too; the rules do not care whether the verse is sacred or silly.
Try it yourself
Take a two-line belief you actually hold, a private proverb of your own, and write it twice: once in strict eight-syllable lines, once in eleven. Mark every syllable laghu or guru above the words. Read both versions aloud and note, in one sentence, which weight pattern makes the thought sound more true.
Questions
Is chandas the same as chhand?
Essentially yes. Chhand is the Hindi form of the Sanskrit word chandas, and the discipline is continuous. Hindi prosody, however, added its own emphasis, especially the matrik chhands that count beats of time rather than syllables, so the Hindi tradition feels broader in practice.
Who wrote the first treatise on chandas?
The earliest surviving work is the Chhandahshastra of Pingala, generally dated to around the second or third century BCE, though the dating is debated. Metrical awareness is older still, since the Vedic hymns themselves are organised by metre.
How many Vedic metres are there?
Seven principal ones are usually listed, from Gayatri at 24 syllables up to Jagati at 48. The tradition names many more minor and mixed varieties, and classical Sanskrit later added hundreds of fixed syllabic metres on top of the Vedic core.
By the Writory editorial team, reviewed by working poets. Updated September 2026.
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