During interrogation, the two, arrested in Allahabad by the Special Task Force, revealed the names of 19 policemen allegedly involved in the racket, a Home Department spokesman said here.
Action would taken against the policemen who were posted in Mirzapur, Fatehpur, Varanasi, Kaushambi and Pratapgarh, he said.
A police constable was injured when the STF chased a truck, carrying cattleheads, to nab the two near the Soraon toll tax, the spokesman said.