Controversial Bangladesh author Taslima Nasreen [Images] on Wednesday left India to an unknown destination and has reached London [Images], as she voiced her bitterness against the Indian government accusing it of being no better than "religious fundamentalists".

Talking to PTI from the Heathrow Airport before taking a connecting flight after she left New Delhi on Wednesday morning on a British Airways flight, the 46-year-old author refused to disclose where she was heading, saying she did not want to "compromise" on her security.

"If I disclose my destination my security will be compromised. My face has now become recognisable and I could  be target of religious fundamentalists," she said.

Taslima, whose India visa was extended for further six months last month, alleged her human rights was infringed in the last four months when she was brought to Delhi after being hounded out from Kolkata.

Taslima said she will not hesitate to discuss what she said the traumatic experience she allegedly went through during various international seminars lined up in Europe in the next few months.

"I was put under tremendous stress but I could not speak out as I was under their (government) surveillance and could be harassed by them," she said.

"The government (Indian) is no better than religious fundamentalists," she said.

Nasreen said she used to call the government safe-house in Delhi where she was put up as the "torture chamber".

"I gradually came to realise that it was the chamber of death instead," Taslima said, adding she was forced to leave India because of "extreme stress" that she went through the last four months.