The deceased was identified as Sujon, son of Abdullah of Kagojpukur village in Benapole.
Lieutenant Colonel Imran UllahSarkar, commanding officer of BGB-21 Battalion, said on secret information that a group of 10 to 12 drug peddlers would enter the country with phensidyl from India through the border a BGB team conducted a drive.
Sensing their presence, the smugglers threw some bombs targeting the BGB personnel forcing them to fire back in self-defense, he said.
Later, BGB members found Sujon dead on the spot. They also recovered three bombs from the spot, he added.
The body was kept at Jashore Sadar Hospital while a Rapid Action Battalion (Rab) bomb disposal team disposed the bombs.
Habilder Akmal Hossain was severely injured in the gunfight and taken to Dhaka by a helicopter for better treatment, he said.