The Department of Personnel and Training (DoPT) issued a notification to pave way for CBI inquiry into the case, official sources said.
"In exercise of power conferred under the Delhi Special Police Establishment Act, the central government with the consent of the state government of Karnataka extends the powers of the jurisdiction of the members of Delhi Special Police Establishment to the whole of the state of Karnataka for investigation of a case registered on March 16, into the unnatural death of D K Ravi in Bengaluru," the DoPT notification said.
This was, however, rejected by the CBI which said there could be no time limit for investigation.
The state government later issued a fresh notification on April 6 requesting for a CBI probe into the death of Ravi, a 2009 batch IAS officer who had taken on the sand mafia in Karnataka.
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The central IAS officers' association had also demanded CBI probe in the case.