Industrial region refers to the continuous development of industrial landscape over a large area by concentration of a number of factories of different industries.

In short, it is a wide area of manufacturing industries.

1. Mumbai-Pune Industrial regions: It is the biggest and most important industrial region of the country. Opening of the Bhorghat to Pune in 1830, opening of steamer service through Suez Canal in 1843, opening of first railway line of 32 km in 1853 between Mumbai and Thane etc. Supports lot of development of industries in this region by the British who got the Mumbai island as marriage gift of Catherine Braganza’s dowry, in 1661.

2. Kolkata-Hooghly Industrial region: It is an old and important industrial region of the country. Kolkata is the main centre for Hooglgly basin, port, rich hinterland of Ganga and Brahmaputra plain, Assam and Bengal tea plantations, coal and iron ore region of Chotanagapur plateau. Cheap labour from Weat Bengal Bihar, Orissa states, efficient transport by rail, road and waterways etc. are the important facilities supported to develop this region.

3. Ahmedabad-Vadodara Industrial region: It is thrid largest industrial region of the country. It is located in Gujarat and includes the areas around the Gulf of Khambhat and important industrial centres like Ahmedabad, Vadodara, Koyali, Baruch and Surat etp. Ahmedabad is the main centre for cotton.textiles, woollen and silk, textiles, paper, petrochemicals milk products, Engineering, diesel engines, oil refining etc., are the other important industries of this region.

4. Madurai-Coimbatore-Bangalore Indusrial regions: This region lies in Tamil nadu and Karnataka states. The Important centres are Bangalore, Chennai, Coimbatore, Madurai, Sivakasi, Tiruchirapalli, Salem, Mysore, Mandya, Bhadravathi etc. The region has diversified Industries like cotton textiles, silk, sugar, leather, chemicals, machinery, rubber, electrical equipments telephone, railway coaches, Information Technology’, Bio Technology etc.

5. The Chotanagapur Plateau Industrial regions: This region is located in the states of Bihar, parts of Jharkhand and West Bengal. This region is called the Ruhr of India on account of the growth of a number of iron and steel plants and various engineering industies. Jamshedpur, Bokaro, Chittaranjan, Sindri, Durgapur, Hazaribagh etc are the important industrial town in this region.

6. The Mathura-Delhi-Saharanpur-Ambala Industrial regions: This region covers Uttar Pradesh, parts of Haryana and Delhi. It includes Agra, Saharanpur, Faridabad, Ambala, Delhi, Modinagar, Ghaziabad, Ferozabad, Noida, Meerut, Mathura, Panipat etc. Delhi is the most important centre for the Industries of cotton textiles, glass, chemicals, automobiles, engineering, paper, soap, vanaspati, sugar and oil refineries. The region is facing the problem of environmental pollution.