Aruna Ramchandra Shanbaug, a former nurse who spent over four decades in a vegetative state after being raped at a Mumbai hospital in 1973, died Monday morning after a heart attack following a bout of pneumonia. She was 68.

“She was recovering and all her other medical parameters were fine. Today she suffered a sudden attack and could not be saved,” Dr. Ahmad Pazare, head of medicine at Mumbai’s King Edward Memorial hospital (KEM), told the Indian Express.

Shanbaug began working as a junior nurse at KEM in the early 1970s, after moving to the city from the southern Indian state of Karnataka. On Nov. 27, 1973, she was brutally attacked by a hospital sweeper named Sohanlal Bhartia Valmiki, who tied her to a dog chain and sodomized her. The incident left her in a vegetative state owing to serious brain injuries. For the past 42 years, she had been confined to ward No. 4 of the same hospital.

In March 2011, Shanbaug became the face of the debate on euthanasia in India after the country’s Supreme Court rejected a petition filed by the writer Pinki Virani that sought permission for a “mercy killing.” Virani’s move was opposed by the nurses and doctors at the hospital who had looked after Shanbaug since she was attacked.

Her rapist served seven years in prison after being convicted of robbery and attempted murder.

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