Selva.. Its simple.. Shatabdi for end to end travel is running with only 70 to 80% capacity except on Saturdays and other public holidays. You may say that this has many halts.. but the only station that can gather crowd for AC class is MAS & KPD. Rest are not AC class crowd pullers which u can see from the charts of other trains like Brindavan / Lalbagh and ICE. Hence, to me this will be a white horse. Further, the AC affordable crowd will take shatabdi that will take them faster to SBC compared to this train which runs with same timing as Brindavan.