Queries about Krishna district

According to the hindu Brahmin Vaidiki Velanadu Krishna district marriage ritual- there is a ritual when the evening after marriage during dinner once the bride finishes the dinner she will be given a small arti plate and she will have to take this plate to everybody at the dinner without washing her hand and each person will put in some amount of money in the plate?What is the significance of this ritual? I think it is called engili pallam aarti.