The four main components, often referred to as the pillars of human development, are:
Equity: Refers to making equal access to opportunities available to everybody. The opportunities available to people must be equal irrespective of their gender, race, income, and caste.
Sustainability: Means continuity in the availability of opportunities. This implies that each generation must have the same opportunities, and all environmental, financial, and human resources must be used keeping in mind the future.
Productivity: Refers to human labour productivity or productivity in terms of human work. It is built by enhancing people's capabilities, which leads to better health, knowledge, and skills.
Empowerment: Refers to having the power to make choices. This power comes from increasing freedom and capability. Good governance and people-centric policies are required to empower people.