that is why I have suggested this way. There will be some APSRTC Express buses but not sure of their run time and timings. Advance resv will not be there for such cases.
So, take SBC NED, get down @ DMM and wait for this train. IMHO, TTE will not check of for pax in this 1 hr. Or, you can take some train again which routes back to SSPN.