▁Fin ance ▁depart ments . ▁Railway ▁Elect r ification ▁project ▁units , ▁are ▁head ed ▁by ▁Chief ▁Project ▁Direct ors ▁ ▁History ▁▁ 1 5 0 0 ▁V ▁DC ▁Railway ▁elect r ification ▁in ▁India ▁began ▁with ▁the ▁first ▁electric ▁train ▁( 1 5 0 0 ▁V ▁DC ), ▁between ▁Bomb ay ▁Victoria ▁Term inus ▁and ▁Kur la ▁on ▁the ▁Great ▁Indian ▁Pen ins ula ▁Railway ' s ▁( G IP R ) ▁Har bour ▁Line , ▁on ▁ 3 ▁February ▁ 1 9 2 5 . ▁Ste ep ▁gr ades ▁on ▁the ▁Western ▁Gh ats ▁necess itated ▁the ▁introduction ▁of ▁electric ▁tra ction ▁on ▁the ▁G IP R ▁to ▁Ig at p uri ▁on ▁the ▁North ▁East ▁Line ▁and ▁to ▁P une ▁on ▁the ▁South ▁East ▁Line . ▁ 1 5 0 0 ▁V ▁DC ▁tra ction ▁was ▁introduced ▁on ▁the ▁sub urban ▁section ▁of ▁the ▁Bomb ay , ▁Bar oda ▁and ▁Central ▁India ▁Railway ▁between ▁Col aba ▁and ▁Bor iv ili ▁on ▁ 5 ▁January ▁ 1 9 2 8 , ▁and ▁between ▁Mad ras ▁Beach ▁and ▁Tamb aram ▁of ▁the ▁Mad ras ▁and ▁Southern ▁Mah rat ta ▁Railway ▁on ▁ 1 1 ▁May ▁ 1 9 3 1 , ▁to ▁meet ▁growing ▁traffic ▁needs . ▁The ▁last ▁sections ▁of ▁ 1 5 0 0 ▁V ▁DC ▁in ▁India , ▁from ▁Ch at rap ati ▁Sh iv aj i ▁Term inus ▁M umb ai ▁to ▁Pan vel ▁and ▁Th ane ▁to ▁V ashi , ▁were ▁upgrad ed ▁to ▁ 2 5