Thrikkakarayappan,Onavillu,Onathappan,Puli Kali,Thiruvathira Kali rituals are observed in this festival . The festival involves celebrating dancing . Onam, Thiruvonam is related to Sama Chakeva,Tazaungdaing festival (in Myanmar),Balipratipada . The festival is observed by Malayalis as religious and cultural festival,Kerala state,Italy,Sudan . The 2018 date of the festival was Sat, 14 April,Mon 27 Aug . Onam, Thiruvonam is of Secular,Historical,Hindu type . Onam, Thiruvonam ends on 2 Tevet or 3 Tevet . Bhadrapada Shukla Chaturthi is when the festival begins . The significance of Onam, Thiruvonam festival are A historical meeting was held between the Buddha and his first 1 . Onam, Thiruvonam is also called Ganeshotsav . every year (lunar calendar) is the frequency of this festival . Onam, Thiruvonam 2020 date was April 12 (Western) . The 2021 date of the festival was April 4 (Western) . The 2019 date of the festival was Tue 10 Sep,10 November (Sunni, Ibadi),15 November (Shia) . The official name of the festival Onam, Thiruvonam is Vesākha . On Full moon of the month of Vesākha, Onam, Thiruvonam is celebrated
There is at least one more name of Vesākha festival