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Onam

Harvest festival in Kerala, India

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An Onapookkalam made as part of Onam
Challiyan at Malayalam Wikipedia · CC BY 2.5

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In 1961, during the tenure of Chief Minister Pattom Thanu Pillai, Onam was officially declared the national festival of Keralam. However, in the following year, large-scale celebrations were curtailed due to the Indo-China War. Despite this interruption, the government’s declaration marked a turning point, and from then onwards Onam gradually developed into a grand public festival celebrated across the state and among the Malayali diaspora.

Hindu mythology

Onam commemorates the return of the generous daitya king Mahabali after he was banished to the netherworld by Vamana (the fifth avatar of Hindu deity Vishnu). According to the Hindu legends, after Indra (the king of the devas) is defeated by Mahabali (the king of the asuras), the devas ultimately seek refuge in Vishnu, who agrees to restore Indra to power. To do so, Vishnu incarnates as a dwarf priest called Vamana. Mahabali (himself a devotee of Vishnu) conducts ritual prayers, one of which is attended by Vamana, who requests only three feet (steps) of land to build a fire-altar. Mahabali agrees, despite being told about Vamana's divine nature by the sage Shukra. Vamana grows in size, and in three strides, encompasses all of the universe and beyond. The three worlds are restored to Indra, and Mahabali and the asuras are banished to the netherworld (Patala). However, witnessing Mahabali's love for his subjects, Vamana grants the king's sole wish to visit his kingdom once every year. This homecoming of Mahabali is celebrated as Onam in Kerala every year.

The date of Onam celebration is based on the Panchāngam, and falls on the 22nd nakshatra Thiruvonam in the month Chingam of the Malayalam calendar, which in the Gregorian calendar falls between August–September.

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Source and licence. Adapted from the Wikipedia article “Onam” (this version, 2026-09-30) by its contributors, shared under CC BY-SA 4.0. Lablypedia has left out its tables, references and most pictures, and linked it to other Lablypedia articles.