In a candid speech, A C Jose from Kerala said that the party lost Delhi because of corruption and price rise.
The party, which was in power in Delhi for 15 years, lost despite doing a lot of development, he said.
"An impression is going round that Congress, which has been pro-poor, has been slowly siding with the rich people.
"With just three months for the general elections, government will have to come out with steps to control prices," he said.