Even aggressive TT won't be able to help cover that distance to and fro in one day. So that will make one full day journey with either two rakes required or 3 day a week trip schedule. Also I think SC connection will always be preferred in overnight mode and not in full day journey.
If as per current TT it departs from NGP at 11.15 am and reaches secunderabad by 6 pm, won't be of much use for officials or businessman either.