The running time between GNT - BZA is fine for 45 mins. But , BZA is packed in the mrng with Prasanthi, Mail , Raptisagar SF and Sanga at 6 to 7am. I think, After Golconda Exp only it might enter in BZA. One thing is for sure, if Ratnachal goes out of BZA, then surely BZA divn will give preference to it over Amaravati and Prasanthi :).