), ▁Western ▁Railway , ▁" It ' s ▁basically ▁a ▁Western ▁Railway ▁project ▁and ▁very ▁little ▁portion ▁of ▁Mah ar as ht ra ▁was ▁being ▁covered ▁under ▁it . ▁Hence , ▁the ▁Mah ar as ht ra ▁government ▁was ▁showing ▁little ▁interest ▁in ▁the ▁project ▁and ▁was ▁also ▁rel uct ant ▁to ▁bear ▁a ▁financial ▁bur den . ▁That ▁is ▁the ▁reason ▁why ▁the ▁Railway ▁Board ▁has ▁decided ▁against ▁including ▁the ▁P une - M umb ai ▁portion ▁in ▁the ▁high - speed ▁cor rid or ". ▁ ▁India ▁and ▁Japan ▁signed ▁a ▁Mo U ▁to ▁undert ake ▁a ▁joint ▁feas ibility ▁study ▁of ▁the ▁M umb ai - Ah med abad ▁route ▁in ▁New ▁Del hi ▁in ▁September ▁ 2 0 1 3 . ▁This ▁was ▁in ▁purs u ance ▁of ▁the ▁J oint ▁Stat ement ▁between ▁the ▁then - Pr ime ▁Minister ▁of ▁India ▁Man m oh an ▁Singh ▁and ▁the ▁Prime ▁Minister ▁of ▁Japan ▁Shin z ō ▁A be ▁on ▁ 2 9 ▁May ▁ 2 0 1 3 , ▁which ▁provided ▁that ▁the ▁two ▁sides ▁would ▁co - fin ance ▁a ▁joint ▁feas ibility ▁study ▁of ▁the ▁route . ▁The ▁objective ▁of ▁the ▁joint ▁study ▁was ▁to ▁prepare ▁a ▁feas ibility ▁report ▁of ▁the ▁system ▁with ▁a ▁speed ▁of ▁ 3 0 0 – 3 5 0   km / h . ▁The ▁cost ▁of ▁the ▁study ▁( ¥ 5 0 0 ▁million ) ▁was ▁bor ne ▁equally ▁by ▁India ▁and ▁Japan . ▁The ▁study ▁was ▁scheduled ▁to ▁be