In July 2011, Amnesty International issued a report, “Generalisations, omissions, assumptions: The failings of Vedanta’s Environmental Impact Assessments for its bauxite mine and alumina refinery in India’s state of Orissa”.
The Business & Human Rights Resource Centre invited Vedanta to respond.  Its response is available on the Business and Human Rights website.
Amnesty International then issued a follow-up statement.
See http://www.business-humanrights.org/media/documents/amnesty-rejoinder-vedanta-aug-2011.doc.