Dutta was taken into custody late last night and would be presented before a court in Kolkata today, CBI Spokesperson R K Gaur said here.
The searches were conducted in 18 locations in Kolkata and five in Ranchi after filing an FIR under corruption charges against Dutta and others, he had said after yesterday's CBI action.
During the searches, the agency recovered Rs 3.5 crore cash and over 5 kg of gold (about Rs 1.4 crore according to current bullion rate) from the residence of Dutta, Gaur had said.
Text messages sent to Dutta seeking his reaction remained unanswered.
In pursuance of the conspiracy, Dutta allegedly took huge illegal gratification from the businessmen through a chartered accountant to get the income tax assessment files of different assesses transfered from Kolkata/Hazaribagh to Ranchi, Gaur had said.