Barguna was elevated to a sub-division in 1969 during the formation of Patuakhali district during Pakistan period. Complete the following sentence: Barguna was elevated to a sub-division in 1969 during the formation of Patuakhali district during Pakistan period. <unk> <unk> <unk> <unk>
️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️