What a joke, i would say this train HWH Duronto runs on time in 2% cases... 98% late (up & down both), same for SDAH Duronto (up & down both).....
both HWH & SDAH Duronto are mostly running late be it summers, rainy, winters season.
They should get the same engine as of HWH & SDAH Rajdhani, then only one will be able to see any punctuality improvement in both the trains....