The correct answer is: b) Automobile manufacturing.
Chennai is known as the “Detroit of India” due to its concentration of automobile manufacturing industries. The city is home to several major automobile manufacturers, including Maruti Suzuki, Hyundai, Ford, and Nissan. These companies employ a large number of people and contribute significantly to the city’s economy.
Textile mills are not a major industry in Chennai. The city does have a few textile mills, but they are not as significant as the automobile manufacturing industry.
Electronics industries are also not a major industry in Chennai. The city does have a few electronics companies, but they are not as significant as the automobile manufacturing industry.
Software companies are a major industry in Chennai, but they are not as significant as the automobile manufacturing industry. The city is home to several major software companies, including TCS, Infosys, and Wipro. These companies employ a large number of people and contribute significantly to the city’s economy, but they are not as significant as the automobile manufacturing industry.