The structure, electrical and magnetic properties of Ni47 xMn42+xIn11 (0≤x≤2) alloys were investigated and discussed with a change in the Ni / Mn ratio. It was found that the change in the type of the crystal lattice during the martensitic transformation is accompanied by a significant change in the electrical resistance by 45-50%. It is shown that all the studied alloys exhibit negative magnetoresistance and an inverse magnetocaloric effect. The maximum magnitude of the magnetoresistance in a magnetic field of 18 kOe was found in the Ni46Mn43In11 alloy. The maximum value of the magnetocaloric effect was observed in the Ni47Mn42In11 alloy at Т=325 K.