In fact, the DMK has been put in a tight spot on the 2G scam. After the party gave a notice in the Lok Sabha to discuss former CAG official RP Singh revelations on the loss figure, the party has just realised that the issue would probably boomerang on them. The DMK, apparently, was greatly enthused after Sonia Gandhi attacked the BJP. DMK leaders were in the dark about Singh backtracking on his comments on Dr Murli Manohar Joshi during his interview to CNN IBN's Karan Thapar. Insiders in the DMK blame it on a junior union minister who was promoted to join issues with RP Singh.