Abstract: High spin states in nearly spherical nuclei ¹¹²In have been studied. There are magnetic rotations in the high-lying levels. However, single particle excitations are obvious in the low-lying levels. Magnetic rotations are based on such low-lying single particle configuration states. Single particle configuration states of the low-lying levels in ¹¹²In were assigned by the quasi-particles shell model calculations in this work, and the results were compared with the experimental values.