A Central Bureau of Investigation (CBI) team caught Samiran Kumar Mondal on Monday while receiving the bribe, the official said.
Mondal is currently working at the Kolkata-based regional office of the EPFO.
The CBI team also searched his office and residence and seized incriminating documents.
“We registered a case against Mondal on a complaint that he had demanded Rs 1 lakh from the complainant for not complying with the provisions of the Provident Fund Act. The accused scaled down his demand for bribe to Rs 20,000 after the complainant expressed his inability to pay the bigger amount,” the official said.