In October last year, Ratan Tata had told the apex court that the tapped telephonic conversations between Radia and top politicians, bureaucrats and businessmen, including himself, were leaked to the media because of corporate rivalry.
The conversations were recorded as part of surveillance of Radia's phone on a complaint to the Finance Minister on November 16, 2007 alleging that within a span of nine years she had built up a business empire worth Rs 300 crore.
The government had recorded 180 days of Radia's conversations--first from August 20, 2008 for 60 days and then from October 19 for another 60 days. later, on May 11, 2009, her phone was again put on surveillance for another 60 days following a fresh order given on May 8.