Which city in India is known as the 'Detroit of India' due to its automobile industry?

Correct option is A

Chennai is known as the 'Detroit of India' due to its automobile industry.
The city hosts a significant number of automobile manufacturing units and ancillaries, making it a major hub for vehicle production in India. The presence of major national and international automobile companies has contributed to Chennai's reputation as the premier centre for automobile manufacturing in the country.
Mumbai: Often called the "Financial Capital of India" due to its role as the economic hub with major financial institutions and the stock exchange.
Bengaluru: Known as the "Silicon Valley of India" because of its status as the leading city for information technology and startups in India.
Pune: Referred to as the "Oxford of the East" because of its large number of educational institutions and a vibrant student population.