Ghanshyam Cuisine  Rai dal, another name for mustard kernels, are simply skin-removed mustard seeds that have been coarsely ground. Pickles' primary ingredient is mustard kernels. These kernels are responsible for the unique tart flavor that has made Indian pickles so well-known across the globe. Mango pickle wouldn't be the same without mustard kernels; they are its lifeblood. purchase now online