The girl suffered injuries on her hands in the incident.
According to the police, the suspect is a 25-year-old native of Haryana, and it could be the case of unrequited love.
He was studying MBA along with the woman at her college in Wakad, police said, adding the attack took place outside the college premises.
He has been arrested for alledly attempting murder, they said.
According to the police, the suspect was pursuing the young woman for the last few months and it seemed to be one-sided love interest.
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The woman's finger was badly wounded in the attack, he said, adding she was being treated at a private hospital here.
It is learnt that the woman had complained to the college authorities on Sunday and subsequently, the youth had given in writing that he would not harass her.
While Talking to PTI, A Balasubramanian, president of the SRI Balaji Society, which runs the college, said the girl had approached them on Sunday afternoon and complained that the accused was harassing her and sought action against him.
Balasubramanian said the girl was asked to shift to hostel from her private accommodation outside and today while she was coming to the college in the morning, she was attacked.
"Fortunately, other students and people overpowered the youth and handed him over to police," he added.
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