Since I was unaware of the route from RE to Delhi, I took 22451 Mumbai Bandra(T)-Chandigarh SF express time table for reference. This train has halt of only 2 mins in DEC. However considering your suggestion, I made it halt for 10 mins. the speed for PNP was also with reference to above train. However it is now abit reduced. Please go through the TT of both the train once.