Ārāttu (pronounced [aːraːʈʈə]) is an annual ritual performed during Hindu temple festivals in Kerala, India, in which a priest bathe the idol of a deity by dipping it in a river or a temple tank. It is mainly carried out at the end of a temple festival. Ārāttu is celebrated twice annually—the spring festival (March - April) and the autumn festival (October - November). A festival normally lasts 10 days.[1]
One of the important Arattu in Kerala is conducted at Padmanabhaswamy Temple, Thiruvananthapuram by Travancore royal family, procession is carried out to Shankumugham Beach for the ceremony.[2][3] The operations at the Trivandrum International Airport stops twice a year for the procession to pass through the runway to the Shankumugham Beach.[4] At Ambalappuzha Sree Krishna Swamy Temple, the festival starts with a flag hoisting, after bathing the deities, ambalappuzha palpayasam (a sweet pudding) is offered to the gods.[1] The eight-day long festival at Sree Poornathrayeesa Temple, Thrippunithura is concluded with an aaraattu.[5]
A 1979 Malayalam film directed by I. V. Sasi was titled Aarattu, and a 2021 film directed by B. Unnikrishnan also use the same title, both the films are otherwise unrelated to the ritual.
