Gobardhan Puja and Mha Puja
On the fourth day of Tihar, there are three different known pujas, depending on the people's specific cultural background. Most perform Goru Tihar or Goru Puja (worship of the oxen). People who follow Krishna perform Gobardhan Puja, which is worship towards Cowdung. Cowdung is seen as very useful in Nepal, as in the olden days it was used for everything from light at night (Methane) to polish for the mud floors of traditional houses. The Newar community on the night of this day do Mha Puja (worship of self). Because this period is also the beginning of Nepal Sambat, or the new year of Nepalese especially commemorated by Newars, it ensures prosperity for the new year.
Read more about this topic: Tihar (festival)