That is what I mentioned
Route of YPR Duronto and Shatabdi is different even though both crosses Sadar Bazar, Shatabdi goes via Dayabasti route and Duronto goes directly to Delhi Sarai Rohilla this is because Shatabdi doesn't touch Delhi Sarai Rohilla so it goes via Dayabasti, Delhi Kishanganj to Patel Nagar, Delhi Cantt. Hope you are clear now. I just mentioned important stops.