India's Supreme Court has banned this year's bullfighting ritual at a harvest festival in the south after protests from activists who say the sport amounts to animal torture.

The court also asked the Environment Ministry to respond to petitions from several animal rights groups that have campaigned to have the sport of Jallikattu permanently outlawed.

Jallikattu takes place in Tamil Nadu state during the harvest festival of Pongal, which falls this year on Friday. Thousands of men chase the bulls to get prizes tied to their horns.

Animal rights groups say the animals are terrified and are often deliberately disoriented with alcohol, and are wounded with knives and sticks as they are dragged to the ground.

The Supreme Court banned the sport in 2014 but the Environment Ministry issued an order allowing it this year. Activists say the government tried to subvert the court ban because the sport evokes deep emotions in Tamil Nadu and the state is holding elections this year. Any political group seen as opposed to the sport is likely to face an electoral backlash.

Animal rights group People for the Ethical Treatment of Animals (Peta) welcomed the court order and called it "a partial victory".

Supporters say Jallikattu is more than 2,000 years old and is a deep-rooted part of Tamil Nadu's celebration of the harvest festival.

"A part of my heritage has been taken away from me," said Khusboo Sunder, a former actress and a member of the Congress party.

She denied claims that the bulls are tortured.