Thats why i told there is no official ref. But just check Amaravati blog where i uploaded the pic of its tech stop at SCMN. There only i got info all diverted trains will stop at SCMN. Even ANGA also i have seen stopping at SCMN. Our subash also got down by TATA-YPR at SCMN when it used to divert. Any ways i hope you will give us the best info when you travels next time. As of now its just word from railway men at SCMN.