Ek cheej hai. CBC ke asli jhatke khaane hai, to TN lo. Iske CBC jhatke are very good if u r CBC fan. Waise there is nothing wrong if it has 2006 made coach. Coach maintainence is very top notch. I have travelled in it recently. Hence my views are, let it run with CBC and jab jarurat pade to LHB seedhe do.