The victim, Md Maruf Mia, was the son of Md Shahabuddin of Jhingabari village in Jaintiapur upazila.
The incident occurred near International Main Pillar No. 128/7, in the Minatila area along the Bangladesh-India border, in the afternoon.
Locals reported that Maruf was injured by gunfire from the Khasia people while attempting to cross the border illegally into India around 12:30 pm.
He was later rescued and taken to Sylhet M.A.G. Osmani Medical College, where he succumbed to his injuries around 3 pm, reports UNB.
Lieutenant Colonel Md. Hafizur Rahman, commander of the BGB Sylhet 48 Battalion, said that a flag meeting was held with the commandant of the Indian BSF 4 following the incident.