Onam is an annual Hindu festival with origins in the state of Kerala in India. It falls in the Malayalam calendar month of Chingam, which in Gregorian calendar overlaps with August–September. The festival commemorates the Mahabali, Vamana (Vishnu avatar), Kashyapa and Parashurama-related mythologies of Hinduism.
Onam is a major annual event for Malayali people in and outside Kerala. It marks the summer harvest and is celebrated with numerous festivities. It includes Vallam Kali (boat races), Pulikali (tiger dances), Pookkalam (flower arrangement), Onathappan (worship), Onam Kali, Tug of War, Thumbi Thullal (women’s dance), Kummati kali (mask dance), Onathallu (martial arts), Onavillu (music), Kazhchakkula (plantain offerings), Onapottan (costumes), Atthachamayam (folk songs and dance), and other celebrations. It is the New Year day for Malayali Hindus.