  Long baseline (LBL) neutrino experiments aim to measure the neutrino
oscillation parameters to high precision. These experiments use nuclear targets
for neutrino scattering and hence are inflicted with complexities of nuclear
effects. Nuclear effects and their percolation into sensitivity measurement of
neutrino oscillations parameters are not yet fully understood and therefore
need to be dealt with carefully. In a recent work [1], we reported some results
on this for NO$\nu$A experiment using the kinematic method of neutrino energy
reconstruction, where it was observed that the nuclear effects are important in
sensitivity analysis, and inclusion of realistic detector setup specifications
increases uncertainty in this analysis as compared to ideal detector case. With
this motivation, in this work, we use two methods of neutrino energy
reconstruction - kinematic and calorimetric, including the nuclear effects, and
study their impact on sensitivity analysis. We consider nuclear interactions
such as RPA and 2p2h and compare two energy reconstruction methods with
reference to events generation, measurement of neutrino oscillation parameters
$\Delta m_{32}^2$ and $\theta_{23}$ for disappearance channel, mass hierarchy
sensitivity, and CP-violation sensitivity for appearance channel of the
NO$\nu$A experiment. It is observed that with an ideal detector setup, the
kinematic method shows significant dependence on nuclear effects compared to
the calorimetric method. We also investigate the impact of realistic detector
setup for NO$\nu$A in these two methods (with nuclear effects) and find that
the calorimetric method shows more bias (uncertainty increases) in sensitivity
contours, as compared to the kinematic method. This is found to be true for
both the mass hierarchies and for both neutrino and antineutrino incoming
beams.
