EMD locomotives are those locos which are sourced from the EMD( Electro Motive Division ) of General Motors from USA under a technology transfer deal. EMD locomotives in india belong to the following classes
WDP 4, 4B and 4D
WDG 4 and 5
they are specifically noted for the distinct sound as well as braying horns
and...
more... have top speed of around 180 kmph
major sheds that hold EMD locos are.....KJM, UBL, SGUJ, ET, GOC
they can be spotted on mostly SWR, KR, NFR