Moong mugar dal refers to two potential things, and the description will vary depending on which one you're referring to:

Moong Dal (Whole Mung Bean)

Appearance: Small, round, yellow-green beans with a smooth skin.

Texture: Firm and slightly hard when dry, becoming soft and splitting when cooked.

Flavor: Mild, slightly sweet, nutty flavor with a subtle earthy aroma.

Applications: Commonly used in various Indian dishes like dals, soups, salads, and purées. Can also be sprouted and eaten raw or cooked.

Nutritional value: Rich in protein, fiber, vitamins, and minerals. Easy to digest and considered a good source of plant-based protein.