The duo have been identified as Assistant Sub-Inspector Shankar Ramavadh Singh and Constable Dipak Adani, both attached to Pandhurna police station in Chhindwada district of Madhya Pradesh.
According to a senior ACB official, the complainant in the case had approached the agency claiming the policemen had sought bribe of Rs 18 lakh for not registering a case of illegal possession of electric cables against him.
ACB assistant director P R Gelot said the complainant's name was revealed by a man arrested by MP police recently, following which Singh and Adani arrived in Vadodara to book the complainant.