EMU-Electrical Multiple Unit
MEMU-Mainline Electrical Multiple Unit
EMU are broader dan MEMU, dere4 width of pfs is accommodated accordingly
EMUs generally ran in metropolis lyk Mumbai, Kolkatta, Delhi, Chennai etc
EMUs run on dedicated tracks...
more... unlyk MEMUs vich share track with long distance tracks/routes...
i hav even heard, EMUs dont hav vestibules. not sure though.