The senior Congress leader also said whoever began to communicate is going to reap benefits in the elections.
"It is quite clear that the critical years were 2010 and 2011. Let's not anticipate what will happen on May 16. Whatever will happen on May 16, I think will be a direct product of those critical years of 2010-2011.
"Looking back, it is very clear that opportunities were missed, looking back it is very clear that even the principal opposition party didn't see the opportunities in the 2010-2011. I think those were critical years," Chidambaram said.
Chidambaram said there were some more phases of Lok Sabha elections, so he could not really say anything to hit the headlines.
"Clearly, 2010 and 2011, we (political class) should have communicated to the people of India. I think the disconnect between the political class and people grew and I think whoever ....Began to communicate is going to reap benefit," he said in the programme attended by several dignitaries including his ministerial colleagues Salman Khurshid and Manish Tewari and BJP leader Ravi Shankar Prasad.