avy ' s ▁first ▁native ▁commander - in - ch ief ▁came ▁only ▁in ▁effect ▁in ▁ 1 9 5 3 ▁with ▁the ▁cru cial ▁help ▁provided ▁from ▁the ▁army ' s ▁Commander - in - Ch ief ▁General ▁Ay ub ▁Khan . ▁He ▁was ▁promoted ▁as ▁rear ▁adm iral ▁and ▁assumed ▁the ▁command ▁of ▁the ▁n avy ▁with ▁an ▁objective ▁of ▁expand ing ▁n avy ' s ▁resources ▁and ▁infrastr ucture . ▁ ▁In ▁ 1 9 5 1 , ▁Admir al ▁Ch oud ri ▁decided ▁to ▁built ▁the ▁sub mar ines ▁and ▁war ships ▁at ▁the ▁Kar achi ▁Sh ip yard ▁& ▁Engineering ▁Works , ▁relay ing ▁his ▁plans ▁to ▁the ▁Ministry ▁of ▁Def ence ▁and ▁Ministry ▁of ▁Fin ance , ▁but ▁was ▁told ▁by ▁the ▁civil ian ▁pl ann ers ▁that ▁the ▁" second - hand ▁ships ▁from ▁the ▁United ▁Kingdom ▁would ▁be ▁better ▁off ▁for ▁Pakistan ", ▁that ▁eventually ▁led ▁the ▁Navy ▁to ▁rely ▁on ▁the ▁ob sole te ▁vessels ▁that ▁had ▁to ▁be ▁ac quire ▁from ▁the ▁United ▁Kingdom . ▁ ▁From ▁ 1 9 5 3 – 5 6 , ▁he ▁bitter ly ▁negoti ated ▁with ▁the ▁U . S . ▁Navy ▁and ▁Royal ▁Navy ▁over ▁the ▁ac quisition ▁of ▁war ship ▁and ▁made ▁several ▁un success ful ▁attempts ▁for ▁the ▁proc ure ment ▁of ▁sub mar ines ▁imported ▁from ▁the ▁United ▁States . ▁ ▁In ▁ 1 9 5 4 , ▁he ▁convinced ▁the ▁U . S . ▁government ▁to ▁provide ▁mon et ary ▁support ▁for