The Only Solution for these Late Running trains is to STOP ALL THE CONNECTING TRAINS(which users most frequently travel) until this trains comes to Secunderabad.
I have done survey and found people are using the BELOW CONNECTING TRAINS using this Devagiri Express at Secunderabad Junction.
1)Rajkot Express(Dep:14:30)
3)Falknama Express(Dep 16:00)
3)Sathavahana...
more... Express(Dep 16:15)
4)Visakha Express(Dep 17:00)
5)Chennai Express(Dep 17:20)
6)Godavari Express(Dep 17:40)
7)Narayanadri Express(18:05)
8)Padmavathi Express(18:30)
9)Charminar Exprees(18:55)
So Railways should STOP all these trains until whatever time the Devagiri Express comes to Secunderabad Junction.
For Ex: if Devagiri is delayed for 10 hrs then all these trains needs only after fulfilling the 10hrs late.