An Indian man has been accused of kidnapping and raping a female colleague for five days to force her to convert to Islam.

Engineer Syen Emad Hasan, 30, proposed to the 27-year-old woman but she rejected him and said her family would not allow 'an inter-religious marriage', police said.

He harassed her until she cut short a work trip to Dubai. When she returned home to confront Hasan, he abducted her, locked her up at his house and took away her phone.

Engineer Syen Emad Hasan (pictured), 30, proposed to the 27-year-old woman but she rejected him and said her family would not allow 'an inter-religious marriage'

Hasan and the woman, who has not been named, worked together at a Dell computer repairs shop in Gachibowli, Hyderabad.

When she left the company and moved to Dubai in August, he 'continued to torture her on social media', police said.

'The woman told us she was forced to talk to Hasan as he showed her photos and videos of them together in Hyderabad, and threatened to send them to her father, said Inspector Ravinder.

He added: 'He [Hasan] also demanded that she send inappropriate photos of her.'

When she returned home to Hyderabad to confront him, he snatched her away to his flat in the al-Hasanath colony, Indian Express reported.

'He took three days’ leave and brutalised and sexually assaulted her,' said an officer of Hyderabad's 'She Team', a police unit tasked with investigating sexual assault.

They added: 'He threatened to continue doing so until she agreed to marry him after converting to Islam. He even threatened to set her on fire and strangle her.

Hasan and the woman, who has not been named, worked together at a Dell computer repairs shop in Gachibowli, Hyderabad (file photo of Hyderabad)

'He took away her phone, passwords of her e-mail, Facebook, and started using them in her name. She was denied access to anybody.'

After four days of captivity, the woman managed to get onto Facebook when Hasan was out and messaged her friend.

Her friend contacted her brother in the south western city of Karnataka, who made the 280 mile journey to Hyderabad and alerted the police.

Police found the woman locked in a bathroom in a state of shock with severe injuries to her head and face.

'Hasan said they were lovers, but the woman appears very scared in his presence,’ the 'She Team' official said.