A woman was severely injured in an acid attack in Lokmanya Tilak Marg area in south Mumbai in the early hours of Friday, a police official said.
The 62-year-old accused, who is known to the victim, has been arrested, he said.
"The police was alerted by staffers at the hospital where she was rushed following the attack. Officials including the deputy commissioner of police have visited the spot. The attack was carried out due to previous enmity," he said.
"Acid was thrown at the woman at around 5:30 am when she was filling water. The accused first abused her. He was held from the vicinity while trying to flee," the official said.
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The man has been charged under Indian Penal Code sections 326 (a), 307, 504, 506 for attempt to murder, causing grievous hurt using acid and criminal intimidation, the official said.