In those days when Rajdhani use to route via Dhone, I always wonder what made IR keep up with this route (LR at SC doesn't bother much as LC use to happen for Rake via RC)!!
That Raj never got any precedence & always looped for any train towards KCG/SC & eventually crawled its way to SBC like M/E!!
PS: DRNTO route/frequency extension depends only on E2E traffic!!