The officer, according to the probe agency, was seeking undue favours from private companies who were flouting anti-dumping rules.
Director (Anti-Dumping) R.K. Jain was arrested Monday and has been sent to CBI custody till Friday.
Three cases have been registered against Jain as searches at 15 places in Delhi, Noida, Mumbai and Jharkhand have yielded "incriminating" documents relating to several bank accounts, bank lockers and investments in real-estate business, CBI spokesperson Harsh Bhal told IANS.
Officials of three private companies and a tout have also been named in the cases. The arrested director belongs to the Indian Costs and Accounts Service.
A laptop computer has also been seized.
"The director was responsible for dealing with the complaints regarding non-compliance of anti-dumping provisions against the delinquent companies. (He) was in league. In this process, while discharging his official duties, he was seeking undue favours, illegal gratifications from the companies," Bhal said.
Published 24 August 2010, 15:12 IST