There are two handy options with BZA dvsn :
1) extension of 17225 to COA - would be effective as Godavari dstrct pass of 17225/6 travel in ratnachal to catch 17225 and vice versa and those passengers r considerably huge in number.
2) Adding 10 more GEN coaches to LINK express that can be detached/attached at BZA.
or else ECoR can run 10...
more... more GEN coaches upto KZJ.
bdw in which section exactly was ds pic taken in 12718 ?