Senior leader who heads the party group in Lok Sabha Mallikarjun Kharge said wherever there are shortcomings the party should go into it and remove them.
Congress rivals and former Congress rebels who have now joined hands with BJP gunned for Rahul and said no surgery could save Congress because it was afflicted with the "cancer of corruption".
At the AICC briefing, party spokesman P C Chacko said the party had given freedom to state units to decide on poll strategies. "We are not saying the national leadership is not responsible," he said.
In a bid to shield the leadership from any attack in the wake of crushing defeat in Assam and other states, he said, "Everyone is accountable and responsible for victory or defeat, no one individual."
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Apparently referring to the aftermath of the Lok Sabha
debacle, Singh said discussions and introspection have taken place and was now time for taking action.
Singh called for "fresh ideas and fresh functioning style" to revive the party.
Asked to explain his pitch for a "major surgery", Singh said a number of reports to improve the state of affairs in the party were submitted to the leadership and it's time to implement those suggestions.
He recalled that after the 2014 general elections, a committee headed by A K Antony was set up to look into the issue (of Congress defeat). After discussions with leaders from states, it submitted a report.
Former Uttarakhand chief minister and Congress rebel Vijay
Bahuguna, who quit the party to join BJP, said, "Congress leadership has no connect with the cadre or senior state leaders."
He added, "They are surrounded by a coterie of state or of the leaders in Delhi who cannot win in the Lok Sabha elections in their own states but influence all party decisions."
Attacking Rahul, he said, "Problem is that when you talk to Rahul, the discussion is so light that even the dogs came in between. He starts playing with dogs, not humans.