According to highly placed sources, the probe agency conducted searches in the legislator's residence in Nellore besides VNR office in Hyderabad and also in Bengaluru.
The searches are still on and further details are awaited, they said.
Reddy, a former Congress MLC, was elected to the AP Legislative Council for a second term this month as the TDP candidate from Nellore Local Authorities constituency.
A case was hence registered against the firm, Narayana Reddy and six others in this connection.
Reddy had earlier denied his role in the case.