. ▁ ▁The ▁coach ▁factory ▁primarily ▁manufact ures ▁rolling ▁stock ▁for ▁Indian ▁Rail ways ▁but ▁also ▁exports ▁railway ▁coach es ▁to ▁other ▁countries . ▁I CF ▁set ▁a ▁new ▁record ▁producing ▁ 2 , 5 0 3 ▁coach es ▁in ▁the ▁fis cal ▁year ▁ 2 0 1 7 – 2 0 1 8 . ▁It ▁became ▁the ▁world ' s ▁largest ▁railway ▁coach ▁manufact urer , ▁rolling ▁out ▁ 3 , 2 6 2 ▁coach es ▁in ▁the ▁fis cal ▁year ▁ 2 0 1 8 – 2 0 1 9 , ▁up ▁from ▁ 1 , 4 3 7 ▁coach es ▁in ▁ 2 0 0 9 – 2 0 1 0 , ▁expecting ▁to ▁produce ▁ 4 , 0 0 0 ▁units ▁in ▁the ▁fis cal ▁year ▁ 2 0 1 9 – 2 0 2 0 . ▁ ▁A ▁premier ▁production ▁unit ▁of ▁the ▁Indian ▁rail ways , ▁the ▁I CF ▁manufact ures ▁a ▁range ▁of ▁coach es , ▁including ▁Lin ke - H of mann - Bus ch ▁( L H B ) ▁ones , ▁in ▁addition ▁to ▁self - prop elled ▁train ▁sets ▁( SP T s ) ▁such ▁as ▁elect rical ▁multiple ▁units ▁( EM U ). ▁ ▁Introduction ▁In ▁ 1 9 4 8 , ▁the ▁Government ▁of ▁India ▁decided ▁that ▁a ▁separate ▁Railway ▁Co ach ▁Building ▁Works ▁should ▁be ▁established ▁with ▁a ▁view ▁to ▁att ain ▁self - su ffic iency ▁in ▁coach es ▁for ▁Indian ▁Rail ways . ▁A ▁technical ▁A id ▁Ag