Official sources said Central Bureau of Investigation has also received 20 complaints regarding the Games which also include overlays works. A CBI team had even visited the OC office here on Monday.
"CBI is working in close coordination with the ED in connection with the case registered by the Directorate under FEMA," a source said.
Complaints received by CBI also include to those pertaining to CPWD works, which are being looked into, the source said.
"CBI is awaiting for reports from CVC, CAG and the I-T department. CAG has its own Central Technical Examiners and will do a financial audit. If something crops up, CBI will move in," a source said.
Besides the special Committee instituted by Prime Minister Manmohan Singh to probe the alleged corruption, the Comptroller and Auditor General, Central Vigilance Commission, Income Tax Department, Enforcement Directorate and the CBI are also probing OC officials.
The I-T department had today conducted searches in the premises of businessman and BJP activist Sudhanshu Mittal and some consortiums in Delhi and around to detect alleged financial irregularities in works related to the Games.
Meanwhile, the CVC has found discrepancies in tenders and alleged misappropriation amounting to about Rs 8,000 crore.