What should be done if a harsh difference appears between two values in a gradation?

Correct answer: मध्यवर्ती स्वर जोड़ना | Add an intermediate value

A smooth gradation follows the principle of continuous tonal transition. When two neighbouring values differ too sharply, an intermediate value placed between them reduces the size of the tonal jump and makes the passage smoother. Adding more black usually increases the contrast, while erasing the entire area is unnecessary and sand changes texture rather than correcting value progression.