Chand Basha, the assistant professor at the Microbiology Department, allegedly sought the bribe from the complainant, a research scholar, in return for an official favour.
He was trapped by the agency sleuths when he was accepting Rs 20,000 from the complainant, an ACB release said.
According to ACB officials, Basha had been demanding and forcefully extracting illegal gratification from many other research scholars.
He will be produced before a ACB court here, the release said, adding further investigations are on.