The prefix "Utkal" in variety names often indicates origin or development in the state of Odisha (formerly Utkal region), India, typically from institutions like Odisha University of Agriculture and Technology (OUAT).
"Utkal Mayuri" is a known improved variety of Vegetable Amaranth (Amaranthus tricolor or related species grown for leaves). Vegetable amaranth is cultivated for its nutritious leaves and tender stems.
Let's check the other options:
(1) Vegetable Pea: Common pea varieties have different naming conventions.
(3) Vegetable Soybean (Edamame): Varieties have names usually reflecting their origin or specific traits, "Utkal Mayuri" is not typical.
(4) Vegetable pigeon pea: Pigeon pea varieties focus on pod and grain traits.
Therefore, Utkal Mayuri is a variety of Vegetable Amaranth.
Vegetable Amaranth