Premier investigating agency CBI has been ordered to probe the accounting fraud in Satyam Computer, whose founder Ramalinga Raju had disclosed cooking books over 40 days ago, the Rajya Sabha was informed on Tuesday.

Replying to supplementaries during Question Hour in the Rajya Sabha, Corporate Affairs Minister Prem Chand Gupta said while the Serious Fraud Investigation Office (SFIO) under his ministry had been given three-months to wrap up its probe into the Satyam scam, no time-frame has been set for CBI.