The magnetoresistance (MR) of Ni2Mn1+xIn1−x (x=0.32 and 0.36) is studied as a function of temperature and magnetic field under field-cooling and zero-field-cooling, respectively. The x=0.32 does not undergo martensitic transition whereas x=0.36 exhibit martensitic transition and shift in martensitic transition temperature with applied magnetic field. The most important and interesting is the large difference between magnitude of zero-field-cooled (ZFC) MR and field-cooled (FC) MR for x=0.36. With ZFC MR is −3.1% (8T) at 5K and that with FC is −79% (7T) at 5K. The possible origin of large difference in MR with FC and ZFC is explored.