My current research interests and activities are focused on the following two areas: experimental search for proton decays- a direct evidence for (grand) unification, and measurements of neutrino properties, in particular CP violating phase, that may eventually lead us to resolve the matter-antimatter asymmetry mystery in the universe. I have been pursuing these goals through my participation in the Super-Kamiokande, K2K and T2K experiments. I will also participate in the future experiments to pursue these goals further. In addition I am very much interested in detecting neutrinos from supernovae, search for neutrino-less double beta decay and search for dark matter. I currently serve as International Co-Spokesperson of the T2K collaboration. Nature kindly gave us the non-zero neutrino mixing angles in order for us to be able to probe CP violation in the lepton sector. May Nature be kind to us again and provide us with a large CP violation!