A field Experiment was carried out at the Agronomy Resrearch Farm, A.N.D.U.A & T., Kumarganj, Ayodhya during rabi season in 2017-18 and 2018-19 to study the effect of weed management strategy on weed flora and yield of Indian mustard. The experiment was laid out in randomize block design with three replication. Twelve weed control treatment was tested in the experiment. Manual hand weeding at 20 and 40 DAs (T11) recorded significantly reduced density of weed with WCE (74.74 and 88.44%), which was similar to T10, T9, T5, and T6 treatments over other herbicide treatments. It resulted significantly increase growth parameters viz. Plant height, number of branch plant-1, Dry matter accumulation and grain and straw yield of mustard crop.