As per the provisions of the Industrial Disputes Act, 1947, a dispute to be termed as 'Industrial Dispute' must be between

According to Section 2(k) of the Industrial Disputes Act, 1947, an "industrial dispute" is defined as any dispute or difference between:

• Employers and employers; or
• Employers and workmen; or
• Workmen and workmen.

For a dispute to qualify under this statutory definition, it must be connected with the employment or non-employment, the terms of employment, or the conditions of labour of any person. The Act aims to provide a legal framework for the investigation and settlement of industrial disputes to ensure industrial peace. Since the definition explicitly includes all three categories of parties mentioned in the options, the correct answer is "All of the above".