A TV presenter ate cooked human brain with a group of cannibals in India - before one of the flesh-eaters got mad and started flinging his own POO at him.

In an episode of Believer, a six-part CNN series on spirituality, US religious scholar Reza Aslan meets with the Aghori, a nomadic Hindu sect in India.

7 Reza Aslan spent time with the Aghori sect in India Credit: CNN

7 The interview went south and one of the mystics turned nasty Credit: CNN

The group believes that nothing can taint the human body and rejects the Hindu caste system, which deems certain groups of people untouchable.

After Aslan has bathed in the sacred Ganges river, an Aghori scholar smears the ashes of a cremated body on his face and he is given alcohol served in a human skull.

7 The Aghori mystic poos in his hand as the documentary makers look on horrified

Then he is given a piece of burned human brain and eats it, reports the Washington Post.

He said: "Want to know what a dead guy’s brain tastes like? Charcoal."

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7 He also had cremated remains smeared on his forehead by the Aghori mystic Credit: CNN

7 Aslan said the brain tasted like 'charcoal' because it was 'burnt to a crisp' Credit: CNN

He added: "It was burnt to a crisp!"

Soon after the interview turns nasty and one of the cannibals tells the presenter: "I will cut your head off if you keep talking so much."

Then the guru begins eating his own poo - and then flings it at Aslan and his camera crew.

Aslan told his director: "I feel like this may have been a mistake."

7 Reza Aslan is a religious scholar and was filming a documentary about spirituality Credit: Getty Images

7 The six-part series tackles faith and spirituality across the globe Credit: CNN

The segment drew anger from some American Hindus, who claim it portrays their religion in a negative light.

Indian American Shalabh Kumar, a top supporter of the US President Donald Trump said, called it a "disgusting attack on Hinduism".

In a tweet, Kumar said: "Hinduism has been attacked because a large number of Hindu Americans supported Trump during the election campaign."

Aslan took to Twitter to defend the show, saying: "This is a show about the Aghori not Hinduism."