A farmer in the northern Indian state of Uttar Pradesh chewed off a snake's head as "revenge" after the reptile bit him. The bizarre incident took place over the weekend and doctors called the man's behavior "abnormal."

The man, identified only by his first name Sonelal, was rushed to a hospital after neighbors found him unconscious. While onlookers said the man was bitten by a snake, doctor could not find any bite marks on him.

"His nephew Nanhe said Sonelal was alone when the incident took place but someone told him that a snake had bitten him. We administered emergency medicines and kept him under observation," pharmacist Hitesh Kumar, who attended to the man, told local media outlet the Times of India. 

After a few hours in the hospital, Sonelal regained consciousness and told the hospital staff he was grazing his cattle when a snake bit him, promting him to take revenge.

"He said that he picked up the snake in anger and bit off its head and chewed it before spitting it out,” the pharmacist said.

Emergency medical officer Dr. Mahendra Verma said: "It appears that the snake had not bitten him at all. We did not find any snakebite marks on his body. He fell unconscious because of consuming the snake's body part which could have contained venom, assuming that it was a poisonous snake."

The secretary of the state's mental health society said the farmer's behavior appeared abnormal. "This is not normal human reaction. Someone has to be extremely aggressive or deranged to behave in this way," adding that locals claimed he was addicted to drugs. Medical officials believed the man bit off the snake's head under the influence of drugs.