Arundhati Roy was born in Shillong, Meghalaya, India, to Mary Roy, a Malayali Syrian Christian women's rights activist from Kerala and Rajib Roy, a Bengali Hindu tea plantation manager from Calcutta. When she was two, her parents divorced and she returned to Kerala with her mother and brother. For a time, the family lived with Roy's maternal grandfather in Ooty, Tamil Nadu. When she was five, the family moved back to Kerala, where her mother started a school.

Roy has campaigned along with activist Medha Patkar against the Narmada dam project, saying that the dam will displace half a million people, with little or no compensation, and will not provide the projected irrigation, drinking water, and other benefits. Roy donated her Booker prize money, as well as royalties from her books on the project, to the Narmada Bachao Andolan. Roy also appears in Franny Armstrong's Drowned Out, a 2002 documentary about the project. Roy's opposition to the Narmada Dam project was criticised as "maligning Gujarat" by Congress and BJP leaders in Gujarat.  In 2002, Roy responded to a contempt notice issued against her by the Indian Supreme Court with an affidavit saying the court's decision to initiate the contempt proceedings based on an unsubstantiated and flawed petition, while refusing to inquire into allegations of corruption in military contracting deals pleading an overload of cases, indicated a "disquieting inclination" by the court to silence criticism and dissent using the power of contempt. The court found Roy's statement, which she refused to disavow or apologise for, constituted criminal contempt and sentenced her to a "symbolic" one day's imprisonment and fined Roy Rs. 2500. Roy served the jail sentence for a single day and opted to pay the fine rather than serve an additional three months for default.  Environmental historian Ramachandra Guha has been critical of Roy's Narmada dam activism. While acknowledging her "courage and commitment" to the cause, Guha writes that her advocacy is hyperbolic and self-indulgent, "Ms. Roy's tendency to exaggerate and simplify, her Manichaean view of the world, and her shrill hectoring tone, have given a bad name to environmental analysis". He faulted Roy's criticism of Supreme Court judges who were hearing a petition brought by the Narmada Bachao Andolan, as careless and irresponsible.  Roy counters that her writing is intentional in its passionate, hysterical tone: "I am hysterical. I'm screaming from the bloody rooftops. And he and his smug little club are going 'Shhhh... you'll wake the neighbours!' I want to wake the neighbours, that's my whole point. I want everybody to open their eyes".  Gail Omvedt and Roy have had fierce yet constructive discussions, in open letters, on Roy's strategy for the Narmada Dam movement. The activists disagree on whether to demand stopping the dam building altogether (Roy) or searching for intermediate alternatives (Omvedt).

Did this help in any way?