Galaxy clusters are known to harbor magnetic field, however, the extent of the influence of the intra-cluster magnetic field on the cluster member galaxies remains an unresolved question. Intra-cluster magnetic field can be observed as density contact discontinuity formed by cool and dense plasma running into hot ambient plasma, and this exist in the central region of a merging galaxy cluster Abell 3376. Here we report on unambiguous evidence of an interaction between the relativistic electrons and intra-cluster magnetic fields from MeerKAT observations of a radio galaxy MRC0600-399, having bent jets. Contrary to typical bent jets, the jet shows a 90 degrees bend at the contact discontinuity and the collimated jet further extends over 100 kpc from the bend point. The spectral index flattens downstream of the bend point, indicating cosmic-ray re-acceleration. High-resolution numerical simulations reveal that the ordered magnetic field along the discontinuity, at which the intra-cluster magnetic field can be compressed and amplified, plays a significant role to the change in the direction of the jet propagation. The overall morphology of the bent jet bears remarkable similarities with the simulations, which greatly strengthens our understanding of the interaction between relativistic electrons and intra-cluster magnetic field.