Saints of Arunachala · The Siddhars

The 18 Siddhars of Tamil Nadu: the immortal sages

Behind the temples and saints stands a tradition older and more secret ~ the Siddhars, the perfected yogi-sages of the Tamil land who mastered body, matter and time. The 18 great Siddhars, their science and poetry, and their deep link to Arunachala.

Add hero image ~ /images/articles/eighteen-siddhars-tamil-nadu-hero.jpg The 18 Siddhars of Tamil Nadu ~ the immortal yogi-sages of the Tamil land

The short version

Who
The Patinen Siddhar ~ 18 perfected yogi-sages of Tamil Nadu; mystics, alchemists, physicians, poets.
Their science
Founders of Siddha medicine; masters of yoga, alchemy, kundalini, and kaya kalpa (bodily immortality).
The foremost
Agastyar (the father of the tradition), Thirumular (the Tirumantiram), Bhogar of Palani, and more.
The Arunachala link
The hill and nearby Parvathamalai are held to be haunts of the Siddhars.

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Behind the temples and the saints of Tamil Nadu stands a tradition older, stranger, and more secret than either ~ that of the Siddhars. These were the perfected ones, the immortal yogi-sages of the Tamil land, who mastered not only the heights of meditation but, it is said, the very forces of body, matter and time ~ conquering disease, ageing, even death, and leaving behind a treasury of cryptic, powerful verse and the whole science of Siddha medicine. Tradition speaks of eighteen great Siddhars above all ~ the Patinen Siddhar ~ and to know something of them is to touch the deep, mystical root of Tamil spirituality, of which Arunachala’s own hidden siddhas are one branch.

Who were the Siddhars?

A Siddhar is one who has attained siddhi ~ perfection, accomplishment, mastery. But the Tamil Siddhars were a particular and remarkable breed. They were, at once, mystics, yogis, alchemists, physicians, poets and scientists ~ realised beings who turned their attainment not only inward, toward liberation, but outward, toward the transformation of the body and the world. They are credited with founding Siddha medicine, one of the oldest systems of healing on earth, still practised in Tamil Nadu today; with deep knowledge of yoga, kundalini, alchemy and the transmutation of metals; and with the pursuit of kaya kalpa ~ the rejuvenation and even immortalisation of the physical body. Many are believed by the tradition not to have died at all, but to be chiranjivi ~ deathless ~ still living in secret in the hills and forests, or having attained jeeva samadhi, a conscious entombment from which the perfected body does not decay.

They were also, strikingly, rebels and outsiders. Many came from humble or low origins; they scorned caste, empty ritual, and religious hypocrisy; and they wrote not in lofty Sanskrit but in earthy, direct, often riddling Tamil, hiding the deepest truths in the plainest and sometimes coarsest language. Their poems ~ addressed to snakes, to the body, to the ignorant mind ~ are unlike anything else in spiritual literature: at once medical, mystical, satirical and sublime.

Mystics, yogis, alchemists, physicians, poets ~ and rebels: they scorned caste and empty ritual, and hid the deepest truths in the plainest Tamil.

The eighteen great Siddhars

Tradition honours eighteen Siddhars above the rest ~ though, tellingly for a secret tradition, the exact list varies from source to source, and more than eighteen names circulate. Among the most celebrated are these:

Agastyar (Agathiyar)

The foremost and most revered of the Siddhars, a sage of immense antiquity honoured as the father of the Tamil Siddha tradition and of Siddha medicine, and associated with the Podhigai hills. A towering figure across both the Vedic and Tamil worlds.

Thirumular

Author of the Tirumantiram, a monumental work of over 3,000 verses that is a key text of Tamil Shaiva Siddhanta and part of the sacred Tirumurai. Uniquely, he is counted among both the 18 Siddhars and the 63 Nayanmars ~ a bridge between the two great streams.

Bhogar (Boganathar)

A great alchemist and master of Siddha science, celebrated as the Siddhar of Palani, where his jeeva samadhi is enshrined at the famous Murugan temple. He is said to have crafted the deity of Palani from a rare amalgam of herbs and metals.

Idaikkadar

The shepherd-Siddhar (his name means ‘of the herdsmen’), famed for his mastery of astrology and prophecy, and for meditating not in caves but in the midst of thick jungle. A devotee of Shiva.

Karuvurar

A Siddhar of Karuvur (modern Karur), associated with the great Chola emperor Rajaraja I and the building of the Thanjavur Brihadeeswarar temple ~ a master of yoga, alchemy and the mystic arts.

Korakkar

Known in North India as the great Gorakhnath, founder-figure of the Nath yogic tradition; in the Tamil reckoning one of the 18, a disciple of Agastyar and Bhogar, with a samadhi at Nagapattinam.

Pambatti Siddhar

The ‘snake-charmer Siddhar’, once a catcher of snakes, who attained the eight great powers (Ashtama Siddhi) through long penance. His earthy Tamil verses famously end ‘aadu paambe’ ~ ‘dance, o snake’ ~ the snake being the kundalini energy.

Others of the eighteen

The traditional lists also include Kalanginathar (Bhogar’s teacher), Machamuni, Sattaimuni, Sundaranandar, Konkanar, Ramadevar, Kamalamuni, Patanjali, Dhanvantari, Nandi Devar and more ~ the exact eighteen varying between sources.

The Siddhars and Arunachala

The Siddhar tradition and Arunachala belong to the same deep current of Tamil Shaiva mysticism. The hill is spoken of, in the lore, as a haunt of the siddhas ~ perfected beings dwelling unseen upon and within it ~ and the nearby Parvathamalai is especially associated with them, held to have been established by Siddhars who came to meditate, and rich (they say) in the rare medicinal herbs the Siddhars prized. To walk this landscape is to walk ground the Siddhars are said to have walked and to still, invisibly, inhabit. Their spirit ~ the union of the highest realisation with the mastery of life itself, and the refusal of all hollow religiosity ~ runs through the whole spiritual world of which Arunachala is the heart.

On tradition & the sources

The Siddhars belong to living tradition and mystic lore as much as to documented history; their dates are uncertain and often legendary, the lists of the eighteen differ between sources, and the marvellous elements (immortality, alchemy, supernatural powers) are told here as the tradition tells them, not as established fact. What is beyond doubt is the reality and value of the Siddha poetic and medical heritage they left. For Arunachala’s own hidden sages, see the siddhas of Arunachala; for the ancient Tamil saints, the Nalvar.


Frequently asked questions

Who are the 18 Siddhars of Tamil Nadu?

The 18 Siddhars (Patinen Siddhar) are the most revered of the Tamil Siddhars ~ perfected yogi-sages who were mystics, alchemists, physicians and poets, credited with founding Siddha medicine and mastering yoga, alchemy and even bodily immortality. The most celebrated include Agastyar (the foremost), Thirumular (author of the Tirumantiram), Bhogar of Palani, Idaikkadar, Karuvurar, Korakkar and Pambatti Siddhar. The exact list of eighteen varies between sources.

What is a Siddhar?

A Siddhar is one who has attained siddhi ~ spiritual perfection and mastery. The Tamil Siddhars were realised beings who turned their attainment both inward toward liberation and outward toward mastery of the body and world ~ founding Siddha medicine, practising yoga, alchemy and kundalini, and pursuing kaya kalpa (bodily rejuvenation and immortality). Many were rebels who scorned caste and empty ritual and wrote in earthy, direct Tamil.

Who was Agastyar?

Agastyar (Agathiyar) is the foremost and most revered of the Tamil Siddhars, a sage of great antiquity honoured as the father of the Tamil Siddha tradition and of Siddha medicine, associated with the Podhigai hills. He is a towering figure in both the Vedic and Tamil worlds and is regarded in some traditions as a chiranjivi (immortal).

Are the Siddhars connected to Arunachala?

Yes ~ the Siddhar tradition and Arunachala belong to the same deep current of Tamil Shaiva mysticism. Arunachala is spoken of in the lore as a haunt of hidden siddhas, and the nearby Parvathamalai is especially associated with them, held to have been established by Siddhars who came to meditate and rich in the medicinal herbs they prized.

Last updated 12 February 2026. Following the documented record preserved by Sri Ramanasramam and his devotees; where an account is traditional, it is told as such.