Abstract. Levels and transitions in rain and U3In have been studied in the lUCd(p, nT)mln and n3Cd(p, nT)H3In reactions. By means of 7-7 coincidences, 7-angular distributions, relative excitation functions and conversion electron measurements more than 20 levels below 2 MeV have been established in each nucleus. Several negative-parity states were found above 1 MeV. Two low-spin positive-parity states with features similar to the possible rotational band in the heavier In nuclei are observed below 1,400 keV in both nuclei.