Eighty four inbred lines of mustard were evaluated during 2021-22 at ICAR-Directorate of Rapeseed Mustard Research, Bharatpur. Analysis of data revealed significant variability for all observed traits except days to flower senescence and days to maturity. Highest variability was recorded for biological yield followed by plant height and Main shoot length (cm). Days to flowering senescence and days to maturity had low variability observed. Plant height and1000-seed weight was observed moderate variability. Promising lines were identified for number of days to flowering initiation (<46 days), long main shoot length (>95cm), number of seeds per siliqua (>18), 1000- seed weight (>6.5g).These promising lines shall further be used in hybrid breeding programme as parental lines, as well as in varietal development programme.