9 4 7 . ▁In ▁ 1 9 5 0 , ▁he ▁joined ▁Deb endra ▁College ▁in ▁Man ik gan j ▁as ▁its ▁principal . ▁ ▁In ▁ 1 9 5 3 , ▁Khan ▁joined ▁University ▁of ▁D h aka ▁as ▁a ▁secretary ▁to ▁Say ed ▁Mo azz em ▁H oss ain , ▁the ▁then ▁vice - chan cell or , ▁who ▁was ▁succeeded ▁by ▁Walter ▁Allen ▁Jenkins ▁eight ▁months ▁later . ▁Jenkins ▁sent ▁Khan ▁abroad ▁in ▁ 1 9 5 4 ▁for ▁further ▁studies ▁in ▁library ▁science . ▁ ▁Khan ▁arrived ▁in ▁London ▁on ▁ 3 0 ▁September ▁ 1 9 5 4 . ▁He ▁started ▁regular ▁course ▁work ▁as ▁decided ▁by ▁Professor ▁Ir win . ▁After ▁due ▁completion ▁of ▁course ▁work , ▁Khan ▁spent ▁one ▁academic ▁year ▁working ▁intens ively ▁in ▁selected ▁university ▁and ▁other ▁academic ▁libraries ▁in ▁Great ▁Britain . ▁Ir win ▁arranged ▁a ▁training ▁program ▁with ▁several ▁libraries ▁at ▁the ▁University ▁of ▁London , ▁as ▁well ▁as ▁the ▁libraries ▁of ▁the ▁University ▁of ▁Edinburgh ▁and ▁University ▁of ▁B irmingham . ▁Khan ▁successfully ▁completed ▁his ▁training . ▁ ▁After ▁comple ting ▁a ▁two - year ▁course ▁on ▁the ▁theory ▁and ▁practice ▁of ▁university ▁li br ari ans hip ▁in ▁the ▁London ▁School ▁of ▁L ibr ari ans hip ▁and ▁Archives , ▁under ▁the ▁super vision ▁of ▁Ir win , ▁during ▁ 1 9 5 4 – 5 5 ▁and ▁ 1 9 5 5 – 5 6 , ▁Khan ▁returned ▁to ▁his ▁ancest ral ▁place . ▁ ▁Upon ▁return ,