Diwali, the festival of lights, is celebrated over five days. The first day is known as Dhanteras. People clean their houses and go shopping for gold or kitchenware to attract good luck. On the second day, also known as Naraka Chaturdasi or Choti Diwali, people adorn their houses with clay lamps and draw rangoli designs on the floor using coloured sand or powder. The festival's main day is the third, when families do Lakshmi puja, a prayer to Goddess Lakshmi, and enjoy delectable feasts. The fourth day is dedicated to the Govardhan Puja, commemorating the first day of the New Year, and is when friends and family come to visit with gifts and seasonal greetings. The last and most important day is Bhai Dooj or Bhau Beej, honouring the unique relationship between brothers and sisters. When brothers visit their married sisters, they are lavishly welcomed and served tasty food.