In Tamil Nadu, the festival, also known as "Vinayaka Chaturthi" or "Pillayar Chaturthi", falls on the fourth day after the new moon in the month of Āvaṇi in the Tamil calendar. The idols are usually made of clay or papier-mâché, since Plaster of Paris idols have been banned by the state government, but violations of this rule are often reported Idols are also made of coconuts and other organic products. They are worshiped for several days in pandals, and immersed in the Bay of Bengal the following Sunday. In Kerala the festival is also known as "Lamboodhara Piranalu", which falls in the month of Chingam. In Thiruvananthapuram a procession marches from the Pazhavangadi Ganapathi Temple to Shankumugham Beach, with tall statues of Ganesha made from organic items and milk immersed in the sea.