Congress general secretary Digvijay Singh on Tuesday released records of his November 26, 2008 phone call to Mumbai's slain anti-terror squad chief Hemant Karkare, and demanded an apology from "those who called my claims false".

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"I have given the call details. I had called him on the landline of the Maharashtra ATS office given on their web site. I hope those who called me a liar would apologise or at least express regret," Digvijay Singh said at a press conference here.