▁completed ▁within ▁ 1 8 ▁months ▁from ▁its ▁comm enc ement , ▁i . e . ▁by ▁July ▁ 2 0 1 5 . ▁The ▁study ▁carried ▁out ▁traffic ▁forec ast ing , ▁alignment ▁surve ys ▁and ▁under to ok ▁a ▁compar ative ▁Study ▁of ▁high - speed ▁railway ▁technology ▁and ▁systems . ▁ ▁Japanese ▁International ▁Co operation ▁Agency ▁( J IC A ) ▁and ▁the ▁SN CF ▁carried ▁out ▁studies ▁on ▁the ▁project . ▁J IC A ▁research ed ▁the ▁technology , ▁alignment ▁and ▁traffic - related ▁aspects , ▁while ▁SN CF ▁worked ▁on ▁business ▁pro jections . ▁The ▁feas ibility ▁study ▁included ▁an ▁alignment ▁survey ▁concerning ▁aspects ▁such ▁as ▁land ▁ac quisition , ▁environmental ▁challeng es ▁and ▁building ▁of ▁t unn els ▁and ▁brid ges . ▁It ▁also ▁suggested ▁a ▁financial ▁model ▁based ▁on ▁fare ▁and ▁non - fare ▁box ▁re venue . ▁ ▁Pl anning ▁J IC A ▁officials ▁visited ▁M umb ai ▁in ▁January ▁ 2 0 1 4 ▁to ▁discuss ▁the ▁details ▁of ▁the ▁project , ▁and ▁made ▁select ive ▁site ▁vis its ▁to ▁the ▁proposed ▁route . ▁On ▁ 2 1 ▁January , ▁following ▁several ▁meet ings ▁between ▁J IC A ▁and ▁Indian ▁Rail ways ▁officials , ▁it ▁was ▁proposed ▁to ▁origin ate ▁the ▁cor rid or ▁at ▁the ▁Band ra ▁Kur la ▁Complex ▁( B K C ) ▁in ▁M umb ai . ▁The ▁proposed ▁route ▁would ▁begin ▁from ▁B K C , ▁go ▁right ▁up ▁to ▁Th ane ▁on ▁the ▁Central ▁Line , ▁and ▁then