▁his ▁best ▁t ute e ▁over ▁his ▁entire ▁ten ure ▁as ▁fellow ▁of ▁King ' s . ▁ ▁Career ▁ ▁Civil ▁Service ▁He ▁was ▁a ▁member ▁of ▁the ▁Indian ▁Econom ic ▁Service ▁and ▁served ▁in ▁Government ▁of ▁India . ▁He ▁held ▁the ▁rank ▁and ▁post ▁of ▁Special ▁Secretary ▁in ▁the ▁Ministry ▁of ▁Fin ance ▁and ▁later ▁Secretary ▁to ▁Government ▁of ▁India ▁( E conom ic ▁Affairs ) ▁in ▁the ▁Ministry ▁of ▁Fin ance . ▁ ▁Academ ic ▁career ▁Pat el ▁returned ▁to ▁India ▁and ▁joined ▁Bar oda ▁college ▁as ▁Professor ▁of ▁Econom ics ▁and ▁as ▁the ▁Princi pal ▁in ▁ 1 9 4 9 . ▁Edu ard ▁Bern stein ▁ ▁later ▁his ▁ment or , ▁invited ▁him ▁to ▁join ▁the ▁Research ▁Department ▁of ▁the ▁International ▁Mon et ary ▁Fund ▁in ▁ 1 9 5 0 . ▁After ▁five ▁years ▁there , ▁Pat el ▁came ▁back ▁to ▁Del hi ▁as ▁Econom ic ▁Ad vis er ▁to ▁the ▁Ministry ▁of ▁Fin ance ▁in ▁ 1 9 5 4 ▁and ▁spent ▁the ▁next ▁ 1 8 ▁years ▁in ▁one ▁or ▁other ▁top ▁capacity ▁in ▁the ▁Government ▁of ▁India . ▁ ▁In ▁ 1 9 7 2 ▁he ▁became ▁the ▁Deput y ▁Administr ator ▁of ▁the ▁UN ▁Development ▁Program me ▁for ▁five ▁years , ▁returning ▁only ▁to ▁take ▁up ▁the ▁position ▁of ▁the ▁Governor ▁of ▁the ▁Reserve ▁Bank ▁of ▁India . ▁It ▁was ▁during ▁this ▁period ▁marked ▁by ▁tur bul ence ▁in ▁the ▁foreign ▁exchange ▁mark ets ▁that ▁Pat el ' s ▁form id able ▁intellectual ▁powers