The 12791 / 12792 Secunderabad–Danapur Superfast Express is a daily train operated by Indian Railways between Secunderabad and Danapur via Varanasi Junction.

Secunderabad Express will stop at Ara Junction from 10 September 2015.

[1] The train was introduced long back in 1985 as a biweekly train between Tirupati and Varanasi with a typical numbering of "7489 Tirupati–Varanas Express" and "7490 Varanasi–Tirupati Express" with slip coach service of two sleeper coaches between Hyderabad and Varanasi with amalgamation/bifurcation at Kazipet Junction with Dakshin Express.

Though the train gained importance, due to some political and administration influences, it got extended to Cochin Harbour Terminus and with the reduction of frequency from biweekly to weekly, via Tirupati through Renigunta Junction.

It is now hauled by a Lallaguda Loco Shed-based WAP-7 electric locomotive throughout the journey.