Naga Worship in Nepal: The Nagas, Naga Panchami & the Valley's Serpent Shrines

In Hindu and Newar Buddhist cosmology, the Nagas are semi-divine serpent beings who rule over water: rivers, springs, ponds, wells and the underworld realm of Patala. They are guardians of the aquatic world and are closely linked to rain, fertility, treasure and the protection of the land. In Nepal, where a monsoon-fed farming economy depends on timely rain, this makes the Nagas among the most practically revered of all deities, worshipped by Hindus and Buddhists alike.

Tradition names eight principal serpent kings, the Ashtanaga, who are worshipped as heads of their kind: Ananta (also called Shesha), Vasuki, Takshaka, Karkotaka, Padma, Mahapadma, Shankhapala and Kulika. Wider lists add other famous nagas such as Pingala, Kambala, Ashvatara and Dhritarashtra. Ananta or Shesha, the infinite cosmic serpent on whom Vishnu reclines, is regarded as the foremost; Vasuki served as the churning-rope in the Samudra Manthan (the churning of the ocean of milk).

Several of these nagas anchor the valley's own sacred geography. Karkotaka is the serpent king of Kathmandu's origin legend, tied to Taudaha lake, while Pingala and the multi-headed Naga kings appear in the iconography of Nagpokhari in Naxal. Because the Nagas are believed to control snakebite, drought, storms, fire and lightning, their worship is understood as a request for protection from exactly those calamities.

The best-known Nepali naga legend belongs to the origin story of the Kathmandu Valley itself. According to the Swayambhu Purana, the valley was once a vast lake in which lived countless nagas ruled by the serpent king Karkotaka. The bodhisattva Manjushri cut a gorge through the southern hills - identified with the Chobhar Gorge, where the Bagmati River still leaves the valley - to drain the lake and create habitable land for people to settle.

When the great lake drained, the serpents lost their home and Karkotaka is said to have grown furious. In the tradition, Manjushri persuaded the serpent king not to leave but to stay and protect the people who would settle the new land. A residual pool was left for the nagas to inhabit: Taudaha, whose Newari name is read as 'Ta' (snake) and 'Daha' (lake), the 'lake of the serpent'. To appease Karkotaka, an underwater palace of jewels was said to have been built for him beneath the water.

Taudaha lies in Kirtipur, on the southwestern edge of the valley near the Chobhar Gorge, and is among the largest natural lakes remaining in the Kathmandu Valley - a small, shallow water body of only a few hectares (commonly cited at around 86 ropani, roughly four hectares) with a maximum depth of about six metres. Local custom forbids swimming or fishing so as not to disturb the naga's domain, and the lake is now an important habitat for migratory birds. This is the basis of the widely searched 'taudaha snake legend'.

Naga Panchami (Nag Panchami) is the festival dedicated to the serpent deities. It falls on the Panchami - the fifth lunar day - of the bright fortnight (Shukla Paksha) of the month of Shrawan (Saun), which in the Gregorian calendar falls in July or August, at the height of the monsoon. Worshipping the water-controlling nagas at the peak of the rains, when snakes are also most active near homes and fields, ties the festival directly to farming life.

In the Nepali calendar of 2082 BS, Naga Panchami was observed on Shrawan 13, 2082 BS, corresponding to 29 July 2025 (Shrawan Shukla Panchami). Because it is a lunar observance, the Gregorian date shifts each year: in 2026 it falls on 17 August. Searches for 'nag panchami 2082' and 'nag panchami nepal' peak every Shrawan as households prepare for the rite.

A popular Nepali explanation for the festival tells of a Tantric king who, in a time when the nagas had withheld rain from the land, used his powers to compel the serpents to release the monsoon. Having succeeded, the king honoured the majestic power of the nagas by turning his day of victory into a recurring festival - a story that frames Naga Panchami as both a thanksgiving and a plea for continued rain and protection.

The signature ritual of Naga Panchami is the placing of a serpent image (naga) high above or beside the main door of the house. In many valley households a printed or hand-drawn picture of the nagas - traditionally painted by the Chitrakar (painter) community among the Newars - is fixed above the lintel using fresh cow dung (gobar), which acts as both an adhesive and a purifying, auspicious substance. In Brahmin households a priest may instead draw the serpent form directly on the doorframe with cow dung and dubo (the sacred bermuda grass).

The image is then worshipped as a household deity for the day. Typical offerings placed before it include milk, curd (dahi), rice, flowers, dubo grass, sweets and a coin, with incense and a lamp. Because the nagas are water guardians, milk is the most emblematic offering; food is also left in courtyards, fields and near water so that the serpents themselves are fed. The rite is understood to protect the family for the coming year from snakebite, and from fire, storms and lightning.

Importantly, Nepali practice worships the naga through images, idols and carvings rather than by handling live snakes, distinguishing it from some live-snake customs seen elsewhere in South Asia. The doorway naga is generally left in place until it fades, standing as a year-round guardian charm above the threshold. This household observance is the core of what people search for as 'nag puja vidhi'.

The Kathmandu Valley preserves several water bodies dedicated to the nagas that draw crowds on Naga Panchami. Nagpokhari ('snake pond') in Naxal, on the eastern side of the old royal palace, is a historic artificial tank built in the 17th century, attributed to Queen Subarna Prabha. It measures roughly 125 feet by 65 feet and is centred on a tall stone pillar rising from the water topped by a golden multi-headed Naga king - one of the valley's finest examples of late Malla serpent iconography. Today it doubles as a landscaped public park.

Nagdaha ('serpent lake') sits on the southern edge of Lalitpur near Godawari and is popularly held to be the home of a female serpent deity (Nagini). Folk tradition links it romantically to Taudaha, casting the two lakes as the homes of a serpent couple and, symbolically, as anchors of the valley's water balance. On Naga Panchami, and on festivals such as Janai Purnima and Rishi Panchami, devotees gather at Nagdaha to bathe and perform puja.

Taudaha, described above, completes the trio most often named together as the valley's naga sites. On Naga Panchami these shrines - Nagpokhari, Nagdaha and Taudaha - are thronged with worshippers making offerings of milk and flowers. Beyond these lakes, naga imagery is woven throughout valley architecture, from carved serpents guarding temple struts and water spouts (dhunge dhara) to the protective coils in Buddhist iconography.

Naga worship encodes an old and practical ecological ethic. By making the guardians of ponds, springs and wells into deities that must not be angered, the tradition sacralised the valley's water sources long before modern conservation. Taboos against polluting, fishing or draining naga waters - as at Taudaha - helped preserve wetlands and stone water spouts that are only now valued as heritage and as climate-resilient water infrastructure.

The tradition also binds together Nepal's Hindu and Buddhist communities. The same serpent kings appear in the Swayambhu Purana's account of the valley's creation, in Newar Buddhist ritual and in Brahminical Hindu worship, and Naga Panchami is observed across caste and community lines. This shared reverence for the nagas is one of the clearest expressions of the syncretic religious culture that defines the Kathmandu Valley.

For visitors and researchers, the naga sites offer an accessible way to read the valley's mythic landscape onto its real geography: the Chobhar Gorge as Manjushri's cut, Taudaha as Karkotaka's refuge, and the doorway serpents that reappear across the city each Shrawan. Serpent worship remains a living, annually renewed tradition rather than a museum piece - which is precisely why it continues to draw both devotion and curiosity.