As far as Bokaro north cabin is concerned I did try to seek clarity in the past, but post 2017 BSL's handover point has been BKSC, whereas in the past it was bokaro north cabin, so that might mean bokaro nc is now a part of Bokaro Steel City.
But North cabin was in the past an entirely independent entity, even then however in zonal maps and working TTs BKSC was demarcated as a junction point.