Former CWG Organising Committee chief Suresh Kalmadi was today questioned by CBI for alleged irregularities in over Rs 70 crore contracts given to a Mauritius-based company for the 2010 Commonwealth Games.

The Lok Sabha MP from Pune was questioned for about three hours during which he was asked various details related to the controversial contracts, official sources said.

He was also asked about reasons behind selecting the firm for executing contracts for the mega sporting event held from October 3-14, 2010, they said. The firm--Event Knowledge System (EKS)--was allegedly given three contracts worth over Rs 70 crore by the committee for giving consultancy on issues like venue development and management, games workforce planning and project management services.