Chennai is known as the “Detroit of India” due to its concentration of:

Textile mills
Automobile manufacturing
Electronics industries
Software companies

The correct answer is: b) Automobile manufacturing.

Chennai is known as the “Detroit of India” due to its concentration of automobile manufacturing. The city is home to several major automobile manufacturers, including Hyundai, Ford, and Nissan. Chennai is also a major hub for the automotive component industry.

Textile mills are not a major industry in Chennai. Electronics industries are a growing industry in Chennai, but they are not as large as the automobile manufacturing industry. Software companies are also a growing industry in Chennai, but they are not as large as the automobile manufacturing industry.

Here is a brief description of each option:

  • Textile mills: Textile mills are factories that produce textiles. Textiles are fabrics that are made from natural or synthetic fibers. Textile mills are a major industry in many parts of the world, including India.
  • Automobile manufacturing: Automobile manufacturing is the process of making cars and other motor vehicles. Automobile manufacturing is a major industry in many parts of the world, including India.
  • Electronics industries: Electronics industries are industries that produce electronic products. Electronic products include computers, televisions, and cell phones. Electronics industries are a major industry in many parts of the world, including India.
  • Software companies: Software companies are companies that develop and sell software. Software is a type of computer program that is used to control computers and other electronic devices. Software companies are a major industry in many parts of the world, including India.