In 1993 , Barisal division was split off from Khulna and again in 1998 , Sylhet division was split off from Chittagong giving rise to the 6 divisions in existence today . In 1993 , Barisal division was split off from Khulna and again in 1998 , Sylhet division was split off from Chittagong giving rise to the 6 divisions in the country .