Central Vigilance Commission has sought a report from the CBI on alleged "leakage" of information related to the ongoing investigations in the disproportionate assets case against Kadapa MP Y S Jaganmohan Reddy.

"Some people from AP have met me complaining that there has been a leakage of certain investigation. So we have called for a report from the CBI on this. We want to get a feedback from them before taking a final view on it," Chief Vigilance Commissioner Pradeep Kumar told reporters here on Saturday.

Jagan's mother and MLA Y S Vijaya had met the CVC in New Delhi two days ago and lodged a complaint against the CBI Joint Director, alleging that he was leaking information related to the investigation to a section of the media.

When asked about Vijaya's complaint, the CVC, who was here to attend the 9th anniversary celebrations of Vigilance Study Circle, said a report has been sought from the CBI.

The top anti-corruption watchdog stressed the need for greater focus on the "supply side" in corrupt deals.

"When somebody does give bribe and there is a favour given, each is a complement of the other. When you are talking about supply side corruption, somebody wants a favour in the form of licenses, leasing rights, so many other things...they give money to get a quid pro quo. It forms part of corruption.

"For the past five decades, our anti-corruption efforts have largely focused on the demand side corruption... the public servant who receives or solicits bribe. With a liberalised economy and changing dynamics between public and private sector, there is a need to focus on the supply side of corruption...offering of bribe. Various regulatory changes in this direction are being contemplated," he said.