The CBI today carried out searches at the premises of senior IAS officer and former Brihanmumbai Municipal Corporation Commissioner Jairaj Phatak in three different cities in connection with the Adarsh Housing Scam. The CBI teams swooped on his premises in New Delhi, Mumbai and Pune early this morning, a day after getting sanction from the Centre to prosecute Phatak. The agency had registered an FIR in the scam in January this year. Phatak, former commissioner of the Brihanmumbai Municipal Corporation, was named in the list of people awaiting sanction for prosecution as he was a joint secretary rank officer for whom the agency needs to take permission from the Centre. Phatak's son Kanishka is among the 103 members who owned an apartment in Adarsh Society in Mumbai's upmarket Colaba area. The plush housing society, built on prime defence land, had been constructed in alleged violation of rules. The building was originally meant to be a six-storey structure to house Kargil war heroes and their kin but was later extended to 31 floors without mandatory permission.