You are absolutely right even i have onboard earlier when VSKP bound Ratnachal took road cum rail bridge after Kovvur even on 15th of this month it happened..they sent Ratnachal via Road cum rail bridge as 17643 Circar express is just ahead since Circar having stop at Godavari station Ratnachal was sent on to Road cum rail bridge and overtook it at RJY..generally Ratnachal overtakes Circar at KVR
Check the screenshots.