▁India ▁and ▁Pakistan . ▁At ▁the ▁time ▁of ▁the ▁partition ▁of ▁British ▁India , ▁Captain ▁Ch oud h ri ▁was ▁the ▁senior - most ▁Indian ▁naval ▁officer . ▁He ▁decided ▁to ▁opt ▁for ▁Pakistan ▁in ▁ 1 9 4 7 . ▁He ▁was ▁among ▁the ▁first ▁twenty ▁naval ▁officers ▁who ▁joined ▁the ▁Royal ▁Pakistan ▁Navy ▁( R PN ) ▁as ▁a ▁captain ▁with ▁a ▁service ▁number ▁P N . ▁ 0 0 0 1 . ▁He ▁was ▁the ▁first ▁most ▁senior ▁and ▁the ▁only ▁captain ▁in ▁the ▁n avy ▁in ▁terms ▁of ▁senior ity ▁list ▁provided ▁by ▁the ▁Royal ▁Indian ▁Navy ▁to ▁the ▁Ministry ▁of ▁Def ense ▁( Mo D ) ▁in ▁ 1 9 4 7 . ▁He ▁did ▁not ▁act ively ▁participated ▁in ▁first ▁war ▁with ▁India ▁in ▁ 1 9 4 7 , ▁instead ▁he ▁commanded ▁a ▁destroy er ▁from ▁Kar achi ▁to ▁M umb ai ▁to ▁over see ▁the ▁ev acu ation ▁of ▁Indian ▁em igr ants ▁to ▁Pakistan . ▁In ▁ 1 9 5 0 , ▁he ▁was ▁promoted ▁to ▁one - star ▁rank , ▁Com mod ore , ▁and ▁appointed ▁to ▁serve ▁as ▁deput y ▁commander ▁in ▁chief ▁under ▁R ear - Ad mir al ▁J . W . ▁Jeff ord . ▁Admir al ▁R ear - Ad mir al ▁J . W . ▁Jeff ord ' s ▁ret irement ▁was ▁due ▁in ▁ 1 9 5 1 ▁and ▁fav oured ▁continu ously ▁appoint ing ▁the ▁British ▁officers ▁in ▁the ▁armed ▁forces . ▁ ▁Commander - in