Congress leader Digvijay Singh, who had last month criticised Mamata Banerjee dubbing her "erratic" and "extremely immature" over her stand on the Presidential election, on Wednesday welcomed her support for Pranab Mukherjee and described her as a "good friend".

"We are very grateful to Mamata Banerjee for extending her support to Pranab Mukherjee and I am quite hopeful that she will support our Vice-Presidential candidate Hamid Ansari as well," the AICC General Secretary told PTI.

"I have always made comments about Mamata in the right perspective and in the right spirit.I have known Mamata for last three decades and we are good friends," was his response when asked whether he now regrets the strong words he used against Banerjee in television interviews at the height of the controversy over Trinamool Congress earlier rejecting UPA's choice of Presidential nominee last month.

Singh said that he always stands by what he says.

"I always stand by what I say. I never take my words back and I know what I say," he said when asked whether he sticks to his remarks made in a television interview last month.

Reflecting his angst over Banerjee's rejection of the UPA Presidential nominee, the Congress leader had said in a television interview last month that there is a "limit" to which one can "bend" as certain eventualities have to be faced if they cannot be avoided.