Witnesses said they were going to Uttara EPZ on the motorcycle of another person to join the work.
As the motorcyclist lost control while overtaking a truck the couple was crushed under its wheels.
Fortunately, Satish Chandra, the motorcyclist, survived.
Nilphamari Sadar police officer in charge Mahmud-Un-Nabi said that the bodies were recovered and sent to the Nilphamari Hospital morgue for autopsy.
The truck was seized, he said.
