Industries can be classified on the basis of their size, ownership and raw material, such as follows
1. On the Basis of Size:
(a) Cottage Industries – basket weaving, knitting sweaters, making wooden goods, earthern pots. etc.
(b) Small Scale Industries – Match-Stick, bricks, tie and dye-print industries.
(c) Large Scale Industries – cotton textile, cement, Iron and Steel, and automobile industries.
2. On the Basis of Ownership:
(a) Private Sector Industries as – All those which are run by an individual or a group of individuals.
Example: Reliance.
(b) Public Sector Industries as – Hindustan Aeronautic Limited and Hindustan Copper Limited.
(c) Joint Sector Industries as – Maruti Udyog Limited.
(d) Cooperative sector: Anand Milk Union Limited and Saras Dairy Cooperative Unit.
3. On the Basis of Raw Material:
(a) Agricultural as cotton textile and sugar industries.
(b) Sea based as fishing oil, sea food processing.
(c) Mineral based as Iron ore and ornaments.
(d) Forest based as medicines/drugs, paper, furniture making industries.