Solution:
Industry refers to economic activity that is concerned with the production of goods, extraction of minerals, or the provision of services. Industries can be classified into various categories.
Industries based on the Public ownership sector: The government owns and operates.
Example: BHEL ( Bharat Heavy Electrical Limited)
Private Sector: This is owned by individuals or groups of individuals.
Example: TATA Power
Joint Sector: Ownership shared between public sector agencies and private groups.
Example: Oil India Limited
Cooperative Sector: Owned by producers and suppliers of raw material.