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In page WPP plc:

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In 2012 the Indian broadcasting NDTV filed a lawsuit against Television Audience Measurement (TAM), a joint venture of the former competitors Nielsen and Kantar Media Research which for years has provided the only TV audience measurement system in India. The lawsuit alleged that viewership data were manipulated in favor of broadcasters willing to provide bribes.[1] WPP Plc was listed among the defendants as the holding group of Kantar and IMRB.[2][3][4][5][6]