"Which boundaries have I crossed and on which issues," he asked with regard to an AICC statement yesterday that he was not authorised to speak on behalf of the party.
The Congress, which is still trying to woo Mamata's TMC despite recent bickerings, had issued a statement yesterday distancing itself from Singh's comments that the West Bengal Chief Minister was "immature" and "erratic".
Singh told PTI that he was in agreement with the party's message that he was not its spokesperson.
"So, I have no question on that. Whatever I have said, I have said in my personal capacity," he said.
Asked to rate TMC as an ally, Singh merely said, "Every political party acts according to its own roadmap."
To a question on whether he sees any larger design in Trinamool's opposition to the UPA's Presidential nominees, he said, "Each individual party moves along according to that party's core vote."
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When asked about TMC's conduct on the issue of Presidential poll, the AICC leader said, "That is for everyone to see but the fact remains that TMC is still a part of UPA."
Expressing confidence that UPA will be winning the 2014 Lok Sabha elections, Singh pointed out that the ruling alliance has not lost any ally so far.
Asked whether there is a fear in Congress that NDA was trying to poach upon its allies, Singh said that every political party has a reason to extend its support base but Congress is confident of forming a government in 2014.
"Why not" was his short response when asked whether UPA-II will remain intact till the next Lok Sabha elections.
Singh said the next general elections will be a contest between national parties--Congress and BJP, though regional parties will also have a role to play. (More)