Abstract: The when two or more satellites, planets orbiting the same star or same primary and whose orbital mean motion is in ratio of whole numbers then we say they are in orbital resonance. So, in this paper we studied the properties of newly discovered exoplanets TOI-700d and TOI-700c by TESS satellite. We found both planets are in orbital resonance and due to this they are in tidal locking with each other. We found their orbital resonance period as 7:3 and synodic period as 27.951 days.