To identify sources of resistance against mungbean yellow mosaic (begomo) virus (MYMV), 64 lines of mungbean and 21 of mashbean were evaluated under field conditions. Out of 64 mungbean lines, 6 were found as resistant (R) and 35 moderately resistant (MR). Sixteen accessions were graded as susceptible (S) whereas 7 were found highly susceptible (HS). In mashbean, 12 out of 21 accessions were resistant (R) and 8 moderately resistant (MR), whereas, only one was susceptible. Although resistance against MYMV in mungbean and mashbean has been previously reported, but this study reports some additional new sources of resistance to be included in breeding programme to develop MYMV-resistant varieties in the country.