Explanation:

- Chaudhary Devi Lal was a prominent Indian politician and leader in Haryana.

- The movement he led in 1987 was against corruption and misgovernance.

- The name of the movement is Nyaya Yudh.

- Nyaya Yudh (Option 4): This translates to “Justice War” and was aimed at fighting for justice and rights.

- Insaaf Yudh (Option 2): Means “Battle for Justice,” but not related to Devi Lal's movement.

- Maha Yudh (Option 3): Means “Great War” and is irrelevant in this context.

- Sangharsh Yudh (Option 1): Means “Struggle Battle,” but not applicable here.