Speaking to reporters outside Parliament, Yechury said people were searching for an alternative who could provide solution to their day-to-day problems.
"This (results) mean there is a huge anger against the policies of the Congress. How they express that anger depends on whether there is an alternative. Where there was an alternative, like in Delhi, it benefited. Where there was no alternative, the opposition party gained," Yechury said.
"At the moment the only agenda that they have given to the people is anti-corruption ....It was basically a search that is going on, saying that we want something different, But that different, what it is, is not coming up in a tangible form," he said.
Asked whether he thought that the promises that the AAP had made in its manifesto could be fulfilled, he said, "It is difficult".
"Electricity at half the price, all these are very attractive slogans. But the question is more burden should not be put on the people," he said.