there should be some link to sc-gnt route from wl-bza route especially in btw kmt-bza( can extend the motmari-jaggayapet line)
if the diversion is to made to the trains coming from delhi route to skip bza the skipping route is kazipet-kacheguda-gooty-renigunta skipping almost 700kms length(wl-kmt-bza-ogl-nlr-gdr)