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I don't know several reasons but only a few sentences...
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Ahmedabad is called the *Manchester of India* Because of similarities with the famous cotton textile centre of Manchester, Great Britain.

Osaka is an important textile centre of Japan and is known as thr *Manchester of Japan*

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Ahmadabad: The Manchester of India

Ahmadabad, the largest city in the state of Gujarat, is often referred to as the Manchester of India. This comparison draws a parallel between Ahmadabad and Manchester, a city in the United Kingdom known for its industrial heritage. Let's explore the reasons behind this comparison and justify the statement.

1. Textile Industry:
- Ahmadabad has a rich history in the textile industry, just like Manchester. It has been a major center for cotton production and textile manufacturing since the 19th century.
- The city is home to numerous textile mills, weaving units, dyeing and printing factories, and garment manufacturing units. These industries contribute significantly to the city's economy, similar to Manchester's textile industry.

2. Industrialization and Urbanization:
- Both Ahmadabad and Manchester experienced rapid industrialization and urbanization during the 19th and 20th centuries.
- The growth of textile mills and other industries in Ahmadabad led to the influx of migrant workers from rural areas, similar to how Manchester attracted workers during the Industrial Revolution.
- This industrial growth transformed both cities into major industrial centers, driving economic development and shaping their urban landscapes.

3. Architectural Heritage:
- Ahmadabad and Manchester boast architectural heritage related to their industrial past.
- In Ahmadabad, the old textile mills and warehouses have been repurposed into vibrant spaces like art galleries, museums, and cultural centers. The iconic Calico Museum of Textiles showcases the city's textile heritage.
- Similarly, Manchester's industrial architecture, including its red brick cotton mills and warehouses, has been preserved and repurposed into museums, offices, and residential spaces.

4. Educational Institutions:
- Both cities have renowned educational institutions that contribute to their respective industries.
- Ahmadabad is home to the National Institute of Design (NID) and the Indian Institute of Management (IIM), which offer programs in design and management, nurturing talent for the textile and other industries.
- Manchester is known for its prestigious universities, including the University of Manchester and Manchester Metropolitan University, which have played a significant role in research and innovation in industries like textiles and engineering.

Conclusion:
The comparison of Ahmadabad with Manchester as the "Manchester of India" is justified due to the similarities in their textile industries, industrialization, architectural heritage, and educational institutions. Both cities have witnessed significant growth and development in their respective industries, shaping their economies and cultures. This parallel highlights the importance of Ahmadabad as a major textile hub in India and its contribution to the country's industrial landscape.