A man cuts the meat of a sacrificed buffalo a day after the sacrificial ceremony of the "Gadhimai Mela" festival held at Bariyarpur in Nepal December 4, 2019. Tens of thousands of devout Hindus thronged a temple in southern Nepal where thousands of animals and birds were sacrificed this week, amid an outcry from animal rights activists who said the ritual was a cruel and gruesome spectacle. REUTERS/Navesh Chitrakar

A butcher swings his blade to sacrifice a buffalo as the sacrificial ceremony begins during the "Gadhimai Mela" festival held at Bariyarpur in Nepal December 3, 2019. The festival, renowned for its large number of animal sacrifices, is held every five years at the Gadhimai Temple where devotees from Nepal and bordering India sacrifice buffaloes, goats and birds while offering prayers to Gadhimai, the goddess of power. REUTERS/Navesh Chitrakar

A head of a sacrificed buffalo lies on the ground a day after the sacrificial ceremony of the "Gadhimai Mela" festival held at Bariyarpur in Nepal December 4, 2019. The ceremony, held every five years at the Gadhimai temple in Bara in southern Nepal, is believed to be the largest such mass-slaughter event in the world and animal rights activists have been campaigning to end the practice for years. REUTERS/Navesh Chitrakar

Devotees raise their sacrificial blades as the sacrificial ceremony of the "Gadhimai Mela" festival begins at Bariyarpur in Nepal December 3, 2019. Devotees believe the sacrifice, meant to appease Gadhimai - an avatar of the Hindu goddess of power, Kali - brings them luck and prosperity. REUTERS/Navesh Chitrakar

A butcher holding his blade walks inside an enclosed compound during the sacrificial ceremony of the "Gadhimai Mela" festival held at Bariyarpur in Nepal December 3, 2019. The festival, renowned for its large number of animal sacrifices, is held every five years at the Gadhimai Temple where devotees from Nepal and bordering India sacrifice buffaloes, goats and birds while offering prayers to Gadhimai, the goddess of power. REUTERS/Navesh Chitrakar