1 3 % ▁of ▁the ▁population , ▁and ▁females ▁ 4 8 . 8 7 %. ▁The ▁population ▁aged ▁ 1 8 ▁or ▁over ▁was ▁ 1 0 2 , 8 9 0 . ▁J hal ak ati ▁Sad ar ▁had ▁an ▁average ▁liter acy ▁rate ▁of ▁ 5 4 . 4 % ▁( 7 + ▁years ), ▁compared ▁to ▁the ▁national ▁average ▁of ▁ 3 2 . 4 %. ▁ ▁Econom y ▁ ▁Between ▁ 1 9 4 0 ▁and ▁ 1 9 7 5 , ▁J hal ak ati ▁was ▁famous ▁for ▁the ▁only ▁automatic ▁rice ▁h ull er ▁in ▁the ▁region ▁owned ▁by ▁Sh ud hang sh u ▁Bh ush an ▁Das ▁Son ▁of ▁As w ini ▁K umar ▁Das . ▁It ▁was ▁a ▁th riv ing ▁complex ▁built ▁on ▁an ▁area ▁approximately ▁ 2 ▁square ▁kilometer . ▁The ▁smoke ▁from ▁the ▁chim ney ▁served ▁as ▁a ▁navigation ▁land mark ▁by ▁passing ▁steam ers ▁while ▁the ▁factory ▁sir en ▁could ▁be ▁heard ▁from ▁as ▁far ▁as ▁Bar is al . ▁After ▁the ▁company ▁declared ▁bank rupt cy ▁in ▁ 1 9 7 5 ▁their ▁descend ants ▁eventually ▁migr ated ▁to ▁India ▁and ▁other ▁parts ▁of ▁Bang l adesh . ▁The ▁massive ▁ru ins ▁of ▁the ▁factory ▁can ▁still ▁be ▁seen ▁at ▁west ▁Ch and k ati . ▁ ▁Administration ▁ ▁J hal ak ati ▁Sad ar ▁has ▁ 1 2 ▁Un ions / W ards , ▁ 1 8 6 ▁Mau zas / M ah allas , ▁and ▁ 1