The Sonepur Cattle Fair or Malegaon Mela is held on Kartik Poornima in Sonepur, Bihar, on the confluence of river Ganges and Gandak. It is also known as Harihar Kshetra Mela and it attracts visitors from all over Asia. Till date, it is the biggest cattle fair of Asia and stretches on from fifteen days to one month. It has its origins during ancient times. This is when Chandragupta Maurya used to buy elephants and horses across the river Ganges. The Sonepur Cattle Fair once used to attract traders from places as distant as Central Asia. One of the purposes of the people visiting the Sonepur Cattle Fair, apart from the fair, is to take a holy dip at the convergence and pay respects at the Hariharnath Temple. what really made the Fair remarkable and memorable is witnessing crowds of pilgrims taking holy bath at sunrise on Kartik Purnima (a particularly auspicious full moon), where the Ganges and Gandak rivers meet, to purify themselves and wash away any negativity.