The trio had demanded bribe from complainant Sashmita Samal to issue her a school leaving certificate, Additional Superintendent of Police, vigilance Cuttack Division, Basant Kumar Pattnaik said.
After Samal complained to the vigilance department, a trap was laid and senior clerk Ramesh Chandra Parija, grade four staff Suryamani Panda and retired senior clerk Sarat Beura were caught red-handed while receiving the bribe.
The three were booked under various provisions of Prevention of Corruption Act, Pattnaik said.