Onam

Onam is a major festival of Kerala that combines harvest traditions, religious stories and community celebrations. Its central season is the Malayalam month of Chingam, with the main observance falling on Thiruvonam.

The festival is celebrated through homes, temples and public spaces, with floral decorations, shared meals, traditional arts, games and other cultural activities forming an important part of the season.

• Atham — the opening day of the ten-day celebration and the traditional beginning of Pookkalam making.
• Chithira — the second day, when the floral design traditionally develops further.
• Chothi — associated in many traditions with new clothes and continued festival preparations.
• Vishakam — a day associated with preparations for the Onasadya feast.
• Anizham — associated with Vallamkali and other public celebrations in parts of Kerala.
• Thriketta — a day of continuing household and temple observances.
• Moolam — associated with temple feasts, dances and local festivities.
• Pooradam — preparations intensify as the main day approaches.
• Uthradam — commonly called First Onam and traditionally a major preparation day.
• Thiruvonam — the main day of Onam and the centre of the festival's religious and family observances.

Mahabali — Kerala tradition tells of Mahabali, a generous and respected ruler whose annual return to visit his people is commemorated during Onam.

Vamana — In the best-known Hindu legend, Vishnu appears as Vamana and asks Mahabali for three paces of land. After Mahabali offers himself for the final step, he is granted permission to return to his people each year.

Harvest and prosperity — Onam also marks a seasonal period associated with harvest, abundance and the transition into Chingam.

Onam has developed from a combination of agrarian seasonal customs, regional traditions and stories associated with Mahabali and Vishnu. References connected with Onam appear in early Tamil literary works, while later Kerala traditions closely associate the festival with Thrikkakara and the Vamana tradition.

Over time, household and temple observances expanded alongside public cultural celebrations, allowing Onam to become a prominent expression of Kerala's cultural identity and a festival observed by Malayali communities beyond the state.

At home — Families clean and decorate their homes, create Pookkalam floral designs, prepare festive food and wear traditional clothing. Many households gather for the Onasadya meal on Thiruvonam.

Worship — Religious observances vary by household, temple and community. Offerings, lamps, prayers and traditions connected with Mahabali, Vamana and other deities may form part of the celebration.

In public — Kerala towns and cities host cultural programmes, processions, performances, games and boat races, with particular traditions varying by locality.

The celebration begins with Atham, when households traditionally start making Pookkalam. The floral designs grow in size and complexity as the days progress, while families prepare for the main feast and other festivities.

As Thiruvonam approaches, communities take part in cultural performances, games, temple activities and public events. Thiruvonam brings the central family observances, including the festive Onasadya, after which celebrations continue in some places with additional local events.

Central Kerala — Thrikkakara has a particularly strong connection with the Vamana and Mahabali traditions, while Kochi and nearby areas are known for public programmes and the Athachamayam tradition at Thripunithura.

Alappuzha and the backwaters — Vallamkali, or traditional boat racing, is an important part of the Onam season, with different races taking place at different locations.

Thrissur — Pulikali, in which performers appear in tiger-inspired body paint and costumes, is a distinctive public tradition associated with the Onam season.

North and South Kerala — Food, rituals, folk arts and feast menus vary between districts and communities, so there is no single version of every Onam custom.

Malayali diaspora — Communities outside Kerala commonly adapt Pookkalam, Onasadya, traditional dress, music and dance to local settings while maintaining connections with Kerala culture.

• Pookkalam
• Onasadya
• Vallamkali
• Pulikali
• Thiruvathirakali
• Athachamayam
• Onam games

Pookkalam — A floral carpet traditionally made at the entrance of homes and other spaces, associated with welcoming Mahabali.

Mahabali — The legendary king whose annual return is central to the most widely known Onam story.

Vamana — Vishnu's dwarf incarnation in the traditional story of Mahabali.

Banana leaf — The traditional serving surface for the Onasadya feast.

Vallam — The long traditional boat used in Kerala's celebrated boat races.

• Onam's ten-day sequence traditionally runs from Atham to Thiruvonam in the Malayalam month of Chingam.
• Pookkalam designs traditionally develop progressively during the festival, beginning with simpler floral arrangements.
• Onasadya is a large traditional feast served on a banana leaf and can include numerous vegetable dishes, pickles, savouries and payasams.
• Vallamkali uses long traditional boats and is associated with Kerala's waterways and community celebrations.
• Pulikali is a distinctive folk performance in which performers use tiger-inspired painting and costumes.
• Kerala's traditional kasavu garments are characterised by an off-white or white base and a golden border.