"The raid is going on at 15 premises that includes home and offices of the officers," IG ACB Dinesh MN said.
He said there was a complaint of irregularities in the process of tendering against Pawan when he was Additional Director for National Rural Health Mission (NRHM).
Pawan, an IAS officer of 2003-batch, is currently posted as commissioner in the Agriculture Department.
The others who are under the radar of the ACB are Additional Director, Accounts Officer and store keeper at the NRHM office when Pawan was posted there, he said.