CBI sources said they are still probing whether national security was compromised by Tiwari's acts.
The sources said there is information that people linked with Indian Premier League also tried to rope in Tiwari but talks failed over payment issues. The agency is still verifying these claims.
Based on the FBI inputs, CBI had registered a preliminary enquiry and carried out detailed ground work to locate Tiwari who was also arrested by Mumbai Police nearly 10 years ago for cheating a credit card company.
After collecting prima-facie evidence, CBI registered two FIRs under IPC of theft and provisions of violation of Information Technology Act relating to identity theft (Section 66©) read with provisions of hacking and assisting in stealing information.
After filing cases, CBI carried out searches in Mumbai, Pune and Ghaziabad today which were synchronised for the first time with similar operations in China, Romania and the US by the agencies of the respective countries, the sources said.
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