Deepawali  which literally means ‘the row of lamps’ is celebrated as the festival  lights. This festival is also called ‘Tihar’, which lasts for five  consecutive days and is observed in honor of Laxmi, the Goddess of  wealth and good luck. It is the most friendly of festivals  observed throughout Nepal and also India. Laxmi, the Goddess of  prosperity and good fortune is invited into evry homne. All people  enjoyu five days of feasting and family gatherings. It also heralds the  advent of autumn in Nepal. 
 
Laxmi  puja is observed on the auspicious occasion of Deepawali. This is the  third day of Tihar when the sacred cow is worshipped with great honor.  Hindus worship and regard cow as their holy mother. So we worship the  holy cow in the morning with garlands of flowers and apply red Tika on  her foreheads. This ceremony is solemnized with reverence in the morning  hours of Deepawali. This tradition was initiated by the people of  Ayodhyaya to express their boundless joy when lord Rama returned after  his fourteen years’ exile.
A few days before  Tihar, preparations are seen in full swing for cleaning and  whitewashing to add new look to houses and buildings. During this  festival houses, shops, offices, factories, and mills are brightly  decorated with lights and traditional lamps. It is a time of lights and  tinsel decorations. This type of illumination is done for three  consecutive days, beginning from the first day of Tihar. But special  light arrangements are done on the day of Laxmi Puja. Flickering  oil-traditional lamps lighten all courtyards, doorways, roof-tops,  verandas and windows. People stroll around in new clothes and buy sweets  and gifts. In this way, this festival gives a glimpse of a traditional  Christmas.
After the  illumination in the evening the main part of Laxmi puja is performed  during the night. An illumination and well-decorated house attracts the  attention of the Goddess of prosperity. It is believed that the Goddess  of wealth is ritually invited to enter the house and offer blessing to  its occupants. For this purpose a ritualistic drawing is made of  purified cow dung plaster to guide the way for Laxmi in  front of main  door. From the drawing a trail of plaster or rice and red vermillion  leads into the house and the room where Laxmi is worshiped with utmost  devotion and dedication. A beautifully decorated image of the Goddess  Laxmi is placed before the family treasure box or safe which contains  the valuables. Prayers are offered to make them multiply. Throughout the  whole night the earthen lamps filled with ghee or pure mustard oil, are  kept burning at the place where the Goddess of wealth is worshipped.  Everybody tries his level best to welcome and please the goddess of  prosperity. She loves light and sacred cowrie (conch) shells. Children  love to play with fireworks during the Tihar and especially on Laxmi  puja day. However, as fire crackers could be dangerous and harmful they  are banned in Nepal these days. 
 All  monetary transactions are forbidden on this auspicious occasion. The  only exception is the giving of small coins and food (sel roti)- to  small groups of Bhailo singers. Groupes of singers go door to door  singing and dancing and asking for money. This is a timebound tradition.  Girls are supposed to ask for money on this solemn occasion. Boys turn  comes next day, which is called Dheunsi.
All  monetary transactions are forbidden on this auspicious occasion. The  only exception is the giving of small coins and food (sel roti)- to  small groups of Bhailo singers. Groupes of singers go door to door  singing and dancing and asking for money. This is a timebound tradition.  Girls are supposed to ask for money on this solemn occasion. Boys turn  comes next day, which is called Dheunsi. The  last day of the Tihar is celebrated by sisters worshipping their  brothers. This is called bhai Tika. All sisters honor and worship their  brothers for blessings and wish them success in all their ventures.