Rajdhani ko AP ne OT kiya tha and even August Kranthi Rajdhani Express, Bandra Garibrath Express ko bhi
Jab kaha gayi Rajdhani ki priority
And for your kind information
AP ko slack Hai bolte na
But...
more...

slack kitne der ka Hai batao maybe around 30 minutes or less than that
Then you can see it's present months race blogs and blog posts
It has covered 2 and half hours delay and reached NDLS with Minimal delay with an average speed of 75 kmph from Ramagundam to New Delhi which is same average speed of today's SBC RAJDHANI and SC DURUNTO
SBC NZM Rajdhani ko 1400 kms tak ghasita Hai AP ne
And If u know the vintage of this train
Aaj ki Rajdhani aur Durunto ki baap thi ye train
No train in India has covered HYB NDLS in 21 hours in it's regular Time table during 1976 and during 1990s
It was AP EXPRESS
And u r comparing AP with Rajdhani
Aaj ki Rajdhani takes 22 hours 30 Minutes from SC NZM
and AP ka just 21 that too from HYB TO NDLS
so it's proved that AP is far better than Today's Rajdhani and Durunto
TN is also Superior than MAS Rajdhani
AP, TN, KK when introduced were more superior to Indian railways than any other train as they were Top class trains
It's a scheduled Overtake at Ballabgarh
But AP Arrived 34 Minutes Early at Ballabgarh for this Overtake
Agar AP ko Ballabgarh halt nahi milta to ye sab NAHI hota
Ballabgarh halt was a blunder mistake of Indian Railways where they have added this stop due to misprint in time table