New Chairman of the Anti-Corruption Commission (ACC) Mohammad Abdul Momen on Wednesday said the commission will start investigation into the allegations against 'big fish' immediately as it is the expectation of people.

"Work as per public expectations is top priority. We will take action immediately about those cases of corruption which affected the country significantly and take action against culprits who were behind these graft and irregularities," he said while talking to reporters on the premises of the head office of the Commission after taking charge.

"ACC is a part of the society. It is not impossible to be corrupt in the corrupt society in some cases. It is your duty (journalists) to investigate disinterestedly if you find any complaints against me and my commission," he said.

He also sought cooperation from the media to reach out the right information to people.

Momen, a former senior secretary to the government was serving on a contractual basis in the Ministry of Home Affairs, resigned from his position earlier.

One of the ACC Commissioners (investigation) Miah Mohammad Ali Akbar Azizi also took charge today while Brig Gen (retd) Hafiz Ahsan Farid, is set to assume office on December 17.