Former Commonwealth Games (CWG) Organising Committee chief Suresh Kalmadi was arrested by the CBI Monday after he was questioned again in connection with alleged irregularities in the contracts awarded for the 2010 mega-event, an officer said.

After skipping questioning thrice, Kalmadi appeared at the Central Bureau of Investigation (CBI) headquarters here and was quizzed by the CBI sleuths before he was arrested.

However, speaking to reporters, Suresh Kalmadi's lawyer denied reports of his arrest.

"Suresh Kalmadi has not been arrested. I've spoken to him and he has not been arrested," said Kalmadi's lawyer Hitesh Jain.

The evidence that the CBI is going to use against Kalmadi include statements of officials who opposed the Swiss deal which has been recorded under Section 164 of the Code of Criminal Procedure, speech of Kalmadi verified by his staff including Media Manager given at the time of AGM where he openly announced: "Swiss Omega representatives are here they are going to get contracts".

Sources said that the CBI has also got crucial leads in the Time Scoring Equipment scam against Kalmadi. According to sources, the CBI has got the video recordings of an Organising Committee meet in New Delhi where Kalamdi and his associate, VK Verma, announced the awarding of Time Scoring Equipment contract to a Swiss company.

The CBI has also summoned India representatives of Swiss Omega Gem International on Tuesday. They are also likely to be arrested.

He was questioned for the third time on Monday (April 25) by the CBI over alleged irregularities in the conduct of Queen's Baton Relay (QBR) held in London in 2009.