Model Archana Pandey's former boyfriend Omar Asif Pathan was arrested two days after she was found hanging at her Versova home here, police said Friday.
Archana Pandey, 26, had allegedly committed suicide at her residence here and her body was found Monday.
In a suicide note, she had named Pathan as the person responsible for her death, alleging that he had physically exploited her and left her for another woman.
"Her boyfriend is in the police custody now. He was arrested Wednesday...," a police official told IANS.
It is alleged that the two were in a live-in relationship for three to four years and had broken up few months ago.
On Monday, some neighbours complained of foul smell emanating from Pandey's flat and called police who found her body.