Treatments combinations consisted of three Mustard varieties viz. V1, V2, and V3 (V1- Kranti, V2- RH-749 and V3- Maya) and four Sulphur levels S0, S1, S2and S3 (S0-0, S1-20, S2-40 and S3-60 ha-1 ). The soil of the experimental farmer’s field was silty loam in texture with low organic carbon (0.35%) and nitrogen (211.60 kg ha-1 ) and medium in phosphorus (16.20 kg ha- 1 ) and potassium (209.0 kg ha-1 ). The Mustard varieties were sown at the rate of 3.0 kg seed ha-1 in lines at 45 cm apart and 4-5cm depth by seed drill on 23th October during 2017. The no. of silique per plant (303.68), length of siliqua (6.80 cm), no. of seeds per siliqua (13.78), test weight (4.41 g), Stover yield (66.15q ha-1 ), seed yield (25.71q ha-1 ) and harvest index (27.62) of mustard were significantly increased with increasing dose of sulphur up to 60 kg S ha-1 which was at par with 40 kg S ha-1 and significantly superior over 0 and 20 kg S ha-1 .The variety RH-749 produced higher value no. of silique per plant (297.96), length of siliqua (6.33 cm), no. of seeds per siliqua (13.47), test weight (4.44 g), Stover yield (64.67q ha-1), seed yield (25.07q ha-1 ) and harvest index (27.36) which was significantly higher to Kranti and Maya. The highest net return (Rs. 77634.00 ha-1 ) and B:C ratio (2.47) were computed under 60 kg S ha-1 with RH-749. Mustard variety RH-749 at 40 kg S ha-1 proved most remunerative and economically feasible for cultivation under the agro-climatic condition of western Uttar Pradesh