There is enough demand for originating passengers from DHN, RNC going towards South and equally high demand for passengers boarding from Tata going towards South. Separating trains was a good idea, but then frequency for the Tata ERS ended up becoming bi-weekly which hopefully they should increase.
As of now passengers from Tata have ended up getting train with reduced frequency, poor originating timings and also ended up losing a daily direct connectivity to VSKP