Three other soldiers were also injured, according to an ISPR statement.
The army bomb disposal team was on routine search and clear operation as part of Operation Radd-ul Fassad when Havildar Ahmed Khan was martyred.
The 38-year-old belongs to District Mianwali and left behind a widow, son and two daughters.
A number of security forces personnel have been martyred during Operation Radd-ul Fassad.
Two armed forces personnel in February were martyred in a terrorist attack in the Mir Ali Tehsil of the agency which targeted thier vehicle.