  Neutral current (NC) measurements play an important role in exploring new
physics scenarios at long-baseline neutrino oscillation experiments. We find
that combining NC measurements of the proposed Deep Underground Neutrino
Experiment (DUNE) with its charged current (CC) measurements enhances the
bounds on some of the Non-Unitarity (NU) parameters. Combining DUNE with the
T2HK experiment improves the bounds further. We show that even in the averaged
out regime of light sterile neutrinos, the NC events are different from the
heavy sterile case in the leading order. It is observed that NC measurements at
DUNE provide much better constraints on the $\alpha_{33}$ parameter than the CC
measurements.
