Former Karnataka Chief Minister and veteran Congress leader SM Krishna resigned from the primary membership of the party, sources close to him said on Saturday.
84-year-old Krishna has written to Congress President Sonia Gandhi conveying his decision, the sources told PTI.
Asked about it, the former Minister for External Affairs declined to react, saying, "Tomorrow. Tomorrow (Sunday)." He has called a press conference on Sunday, where he is expected to give details about his decision and his future plan of action.
Krishna, who was the state Chief Minister from 1999 to 2004 and a former Maharashtra Governor, is reportedly miffed at being sidelined in the party, with which he has an association of more than five decades.
He had returned to the state in 2012, but had been maintaining a low profile in the last two years.