A study was initiated with the objective to understand the susceptibility of different pulserngrains to Callosobruchus chinensis, and then screen the resistance of different pulses tornC. chinensis by evaluation of some biological parameters. All Laboratory Experimentsrnwere conducted at a controlled temperature of 27 Â± 2Â°c and 40 Â± 5 % R.H. In all thernLaboratory Experiments 1-3 days old adults were used.rnSix different pulses were screened for their relative resistance by exposing the seeds tornthe adults of the pest in controlled Laboratory conditions. The results indicated thatrnpreference of oviposition by C. chinensis varied among the treatments. The highestrnpreference of oviposition was recorded on chick pea, faba bean and grass pea while onrnfield pea and lentil least, and null on haricot bean. The treatments also differed in theirrnsuitability to the development of the pest since there were significant differences in thernnumber of adult emergence and developmental period.rnThe treatments also varied in resistance and the variation was due to both non preferencernfor oviposition and larval antibiosis. Field pea and faba bean were more resistant to thernattack of C. chinensis and this was manifested in terms of a lowered fecundity of thernfemales and number of adult emergence together with prolonged developmental periodrnon field pea and lower number of adult emergence and prolonged developmental periodrnon faba bean..rnGerminations were inhibited in treatments with higher number of adult emergence wherernas 100% germination were recorded on the treatments with lower number of adultrnemergence and on which oviposition was deterred and also the oviposition deterrence ofrnC. chinensis on haricot bean was due to the fact that this treatment may not a host for C.rnchinensis.