Railway is seeing this train best longest route ,this is puzzle ,I am suggesting via kcg-dhone-renigunta-gudur-chennai-arrakonam-chengalpattu-madurai-rameswaram-trivendram central-ernakulam-coimbutore-erode-tirupattur-bangalore-mysore-hassan-mangalore,this is very longest best route,railway is thinking to rote the train via this route,thanq and is useful for SR,swr also