The man stabbed the 25-year-old with a knife in full public view at the Koyambedu bus terminus last night as she did not respond positively to his proposal, they said.
The woman, who sustained minor injuries, raised an alarm following which a police official on duty in the vicinity nabbed the assailant with the help of others at the terminus.
The man was arrested and produced before a court today which remanded him to judicial custody.
After preliminary inquiry, police said three years ago the man and the victim had worked together in a private firm and at that time too, he had pestered the woman to accept his advances.