The phenomenon of neutrino oscillation is now well understood from the solar, atmospheric, reactor and accelerator
neutrino experiments. This oscillation is characterized by a unitary PMNS matrix which is parametrized by
three mixing angles and one phase known as the leptonic CP phase. Though there are already significant amount
of information about the three mixing angles but the CP phase is still unknown. In my talk I will describe the
synergy between the long-baseline (LBL) experiment NOVA, T2K and the atmospheric neutrino experiment ICAL@INO
for obtaining the first hint of CP violation in the lepton sector.