She said that Kalmadi has been arrested for conspiracy to favour a private firm in Switzerland by awarding contract at inflated cost of 141 Crores rupees and contract was awarded to the firm by wrongfully restricting and eliminating competition from other suppliers in pre mediated manner.

The CBI also claimed to have gathered fresh leads after the trip of its team to London in connection with cases related to alleged irregularities in hiring of AM Films and AM Car and Van Hire Limited during QBR held in 2009 at exorbitant rates.

The team has spoken to the London-based owner of both the companies — Ashish Patel — who has provided information and documents with regard to the allegedly overvalued deal, the sources said.

Earlier in the day Kalmadi was questioned by the investigation agency over alleged irregularities.His close aides, former OC secretary general Lalit Bhanot and former director general V K Verma were arrested in February this year.

Meanwhile, Union Sports Minister Ajay Maken has said the Indian Olympic Association IOA would be asked to elect its new Chairman. Talking to media on the sidelines of a function he said, if the IOA fails to act, his ministry will seek the advice of the Attorney General in this regard and will intervene accordingly.