Onam is one of the most celebrated festivals amongst the Malayalis in and outside Kerala. The annual harvest festival is a 10 day celebration which according to the Gregorian calendar occurs in the month of August and September. This year, it began on the 22nd of August and will end on August 31.

from Times of India https://timesofindia.indiatimes.com/life-style/events/happy-onam-2020-images-quotes-wishes-messages-cards-greetings-pictures-and-gifs/articleshow/77845338.cms