Nuclear effects in neutrino scattering interactions are one of the major sources of systematic uncertainties in current and future neutrino-beam oscillation experiments. In this work, we compare the calorimetric and kinematic method of energy reconstruction of the incoming neutrino energy, both at the near and far detector of the NO$\nu$A experiment, and study the role of multi-nucleon (MN) effects, mainly 2p-2h and RPA on the sensitivity measurement of various neutrino oscillation parameters in the disappearance channel to estimate the size of the systematic error associated with theoretical models. Both short-range and long-range nucleon-nucleon correlations along with Transverse Enhancement are taken into consideration.