46.
The answer is: C
Explanation
The correct option is C: The Minimum Wage Act.
This is because the term "minimum wage" has been described in the Minimum Wages Act, 1948, which is an act of parliament concerning Indian labor law that sets minimum wages that must be paid to skilled and unskilled labor.
The Minimum Wages Act was introduced in India in 1948 after independence, giving both the central government and state government jurisdiction in fixing wages.
The Act empowers the government to fix minimum wages for employees working in specified employments and provides for review and revision of minimum wages already fixed after suitable intervals not exceeding five years.
Option A is incorrect as the Trade Union Act does not deal with minimum wages, but with the registration and rights of trade unions.
Option B is incorrect as the Industrial Dispute Act does not define minimum wages, but provides for the prevention and settlement of industrial disputes.
Option D is incorrect as there is an act that describes the term "minimum wage".