All the seven candidates of Congress, who lost in the Lok Sabha polls including Kapil Sibal, Ajay Maken, J P Agrawal, Sandip Dikshit have been called for the feedback.
Antony and AICC general secretary Mukul Wasnik will be taking stock of the reasons for the 7-0 defeat of the party in the national capital.
Party sources said Antony will also be meeting PCC chiefs, CLP leaders and other party functionaries from various states in the days to come to find out what went wrong with the party in the Lok Sabha polls.
Antony will prepare a report which may be finalised before the budget session of parliament.
The party is reported to be contemplating changing Chief Ministers in Maharashtra, Assam and Haryana besides replacing PCC chiefs in around ten states including that of Maharasthra, Uttar Pradesh, Odisha and Tamil Nadu.
Congress has got its lowest tally of 44 seats in the 543-member Lok Sabha in elections held in April-May this year.