Aarti (Hindi आरती), also spelled arathi, aarthi (from the Sanskrit word "आरात्रिक" with the same meaning) is a Hindu religious ritual of worship, a part of puja, in which light from wicks soaked in ghee (purified butter) or camphor is offered to one or more deities. Aartis also refer to the songs sung in praise of the deity, when lamps are being offered.
Read more about Aarti: Origin, Practice, Significance, Aarti Songs, Aarti in South Indian Temples, Aarti in Gaudiya Vaishnavism, Aarti Dance in Durga Puja, Aarti As A Given Name