The festival, which takes place every five years at the border town of Bariyarpur, sees men armed with traditional swords behead animals including goats, chickens, pigs and buffalo. The last festival, which took place in 2009, saw over a quarter of a million animals killed and CNN are reporting that this year the number of sacrifices are expected to double to 500,000 More than 80 per cent of Nepal's 27 million people are Hindus, but unlike most of their counterparts in neighboring India, they frequently sacrifice animals to appease deities during festivals.