Actually GR rake belongs to ECoR (VSKP). SCR took the rake to run specials to AKP. One fine day SCR have given the dates on inauguration of GR which ECoR objected. But after some lobby SCR got the rake.
Many might have observed that for 08 made coaches, 'ECo' was re-painted and written as SC. Still few coaches which have not gone for POH have the same.