Can't agree to the statement "ER maintenance is the worst." We know the HWH, SDAH Rajdhani and Duronto expresses have one of the best maintenance in IR. All the AC coaches of the trains operated by ER also recieves good maintenance. In the ICF days of HWH-RNC-HWH Shatabdi, despite of the coaches being too much old, HWH divn took great care of the rake and it used have very clean coaches. AC coaches of WBSK, Kalka, Darjeeling Mail, Uttarbanga exp etc are also well maintained and the cleaning can be seen mopping the floor and cleaning the windows, mirrors frequently. The Sleeper and GS coaches of ER aren't really good.