An experiment was conducted during the period from 1 Jan 2022 to 30 June, 2023 to evaluate the mustard seed quality under different storage conditions. Indian mustard (Brassica juncia L.) variety TAM-108- 1 seed stored for eighteen months in tin container, aluminium foil, polythene bag and cloth bag at room temperature. The initial cold test germination percentage of seed was 90.23% but after eighteen months (540 days) in tin container, aluminium foil, polythene bag, cloth bag it was decreased with time period to 42.00%, 34.00%, 30.00%, 27.00%. The initial brick gravel test germination percentage in seed was 89.00% however, after storage for eighteen months in tin container, aluminium foil, polythene bag and cloth bag it was declined to 40.23%, 29.00%, 24.00%, 21.00%. The initial speed of germination index percentage in seed was 55.23% however, after storage for eighteen months in tin container, aluminium foil, polythene bag and cloth bag it was declined to 21.23%, 15.23%, 13.77% and 12.23% respectively. Storage condition affects the moisture content and normal germination. The study revealed that for seed storage tin container was better significant than aluminium foil, polythene bag, cloth bag for mustard seeds.