SLN got dedicated Sadbhawna (Tu) & Suheildev SF (Fr) on run day of Mau SF with easy booking options!! DLI-SDAH Upper India can be deemed preferred to certain level for SLN but SDAH-DLI was never!!
Its the same for MAU SF non preferred SLN-ANVT-SLN Schedule but it got great schedule for MAU-LKO-MAU, MAU-ANVT (Night DEP) & ANVT-MAU (Morning ARR)!!