Patnaik, a former Chief Secretary of Odisha, has sent his resignation letter to the president of the All India Congress Committee (AICC).
"Respected Sir, I hereby tender my resignation from INC. Hope you will be pleased to accept it with immediate effect," the e-mail sent to the AICC read.
Patnaik said he quit the party as he didn't find any place and dingnity in the party.
"I had joined the Congress to get it as a platform to reach people. But now I feel I don't have any position in the party. Thus, I resigned from the party," Patnaik said, adding that he sent his resignation letter to the AICC president.
Patnaik, a retired IAS and former Chief Secretary of Odisha had joined the Congress two years back.