Explanation:

- The Industrial Employment (Standing Orders) Act, 1946, requires employers in industrial establishments to formally define employment conditions through standing orders.

- Model Standing Orders are templates provided to help establishments frame their own orders if specific ones aren’t drafted.

- These model orders do not apply to establishments where the State Government is determined as exempt.

- Madhya Pradesh: The state has its own rules regarding the applicability of standing orders.

- Gujarat: Generally aligns with the central act, unless specified otherwise by state rules.

- Kerala: This state follows the central model unless specific exemptions apply.

- West Bengal: Although having state-specific adaptations, follows general applicability principles.

Correct Answer: Madhya Pradesh