1. The Western Industrial Region. This includes the Mumbai-Pune and the Vadodara-Ahmedabad belts. (Maharashtra and Gujarat). It enjoys the following facilities:

(а) Mumbai is an important port.

(б) It is well connected by road and to the rest of the country.

(c) A fertile hinterland-cotton grows well here.

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(d) Power available from Tata Hydroelectric System.

Important industries of this region:

(а) Oil refineries – Koyali and Trombay.

(б) Cement – Porbandar.

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(c) Fertilisers – Dwarka.

(d) Petrochemicals – Ankleshwar.

2. N.E. Industrial Region (Damodar Hoogly Region):

The important industries are jute, iron and steel, fertilizers, chemicals, paper, silk and locomotives.

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The advantages of this region are:

(а) Availability of coal, iron ore and other minerals like mica, manganese, limestone, copper in the Chotanagpur Plateau.

(b) The availability of thermal and hydel power generated by the multipurpose projects located on rivers Damodar and Mahanadi.

(c) Cheap skilled and unskilled labour from Orissa and Jharkhand.

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(d) Fertile hinterland of the Ganga and Brahmaputra Plains.

(e) Good transport facilities-rivers, river ports, roads and railways.

3. Southern Zone:

This region includes the industrial cities of Bangalore, Hyderabad, Madurai, Coimbatore and Chennai.

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The important industries are cotton, sugar, silk and textiles.

(i) Iron and Steel – Bhadravati

(ii) H.M.T. watches, telephones, machine tools – Bangalore

(iii) Military tanks, railways, watches, automobiles – Chennai

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(b) The facilities it enjoys are:

(i) No coal, but has H.E.P. (Mettur Dam) and wood from nearby forests.

(ii) Densely populated area-cheap and abundant skilled and unskilled labour is available.

(iii) Good port facilities-Chennai, Cochin.

4. The Northern Industrial Region:

This includes the industrial cities of Delhi, Kanpur, Allahabad, Varanasi, Jalandhar, Ludhiana and Lucknow in the Ganga, Yamuna Belt. (Punjab, Haryana, Delhi and Uttar Pradesh) The facilities it enjoys are:

(а) Densely populated area, cheap skilled and unskilled labour.

(б) Raw materials available in abundance, e.g., cotton, wool and sugar.

(c) Well connected by rail and road, to all parts of the country.

(d) A large market.