Abstract. The Solar Neutrino flux received on Earth is affected by seasonal variation. The variation of the flux as well as the mean value of the amplitude during a year reveal the physics behind the Neutrino oscillation in the specific regime which is the order of Sun-Earth distance along with the interaction of the Neutrinos with matter. We revisit the scenarios which bring the distance dependency to the Neutrino oscillation in this scale. Employing recent solar data constrains the pseudo-Dirac scenario as a case study. We also briefly go through the scenarios with variations that have different periodicity than the yearly expected frequency.