Figure 4: The appearance probability for neutrino (antineutrino) mode as function of neutrino beam energy for DUNE (first row) and T2HKK (second row) assuming NSI parameters and . The octant degeneracy is represented for neutrino mode (left panel) and for antineutrino mode (right panel). The band comes due to variation of and the boundaries of the bands correspond to for LO and HO. The value of for LO and for HO.