The 4 different sectors of the economy are primary sector, secondary sector, tertiary sector and quaternary sector. The quaternary sector of the economy is based upon the economic activity that is associated with either the intellectual or knowledge-based economy. You can read about the Make In India – Initiatives, Aims, Advantages & Challenges [UPSC Notes GS-III] in the given link.
Extraction of raw materials industries is the primary sector of the economy, services industry is the tertiary sector of the economy.
- Department for Promotion of Industry and Internal Trade (DPIIT) & DIPP – UPSC Notes
- 10 Maharatna Companies – Central Public Sector Enterprises (CPSEs)