The noctuid borer on ragi is

Answer: Option A

The noctuid borer on ragi is Sesamia inferens.
Sesamia inferens, the Asiatic pink stem borer, gramineous stem borer, pink borer, pink rice borer, pink rice stem borer, pink stem borer, purple borer, purple stem borer or purplish stem borer, is a moth of the family Noctuidae. The species was first described by Francis Walker in 1856.
Its wingspan is about 28 mm. Hindwings with veins 3 and 4 arise from the cell. Antennae of male ciliated and simple in female.