  The NuMI Off-Axis $\nu_{e}$ Appearance (NO$\nu$A) is the currently running
leading long-baseline neutrino oscillation experiment, whose main physics goal
is to explore the current issues in the neutrino sector, such as determination
of the neutrino mass ordering, resolution of the octant of atmospheric mixing
angle and to constrain the Dirac-type CP violating phase $\delta_{CP}$. In this
paper, we would like to investigate whether it is possible to extract the best
possible results from NO$\nu$A with a shorter time-span than its scheduled run
period by analyzing its capability to discriminate the degeneracy among various
neutrino oscillation parameters within four years of run time, with two years
in each neutrino and antineutrino modes. Further, we study the same by adding
the data from T2K experiment for a total of five years run with 3.5 years in
neutrino mode and 1.5 years in antineutrino mode. We find that NO$\nu$A (2+2)
has a better oscillation parameter degeneracy discrimination capability
compared to its scheduled run period for four years, i.e, NO$\nu$A (3+1).
