Probir Kumar Sardar and Parvati Yadav, working as junior engineers in the office of Garrison Engineer (Air Force) at Nagpur, demanded Rs 10,000 from civil contractor Rushikesh Sopan Moon for clearing his pending bill of Rs 4.5 lakh, the CBI said in a release here.
Acting on a complaint filed by the contractor, the ACB arrested the duo yesterday.
Searches are being conducted at the office and residential premises of both the accused, the release added.