In the beginning of the 19th century cotton mills in India were mostly located in which of the following states?

Maharashtra

The correct answer is Option 3- Maharashtra

In the beginning of the 19th century, cotton mills in India were mostly located in Maharashtra.

The first cotton mill in India was established in Bombay (now Mumbai) in 1854. Bombay was a major port city and a trading hub for cotton, and it had easy access to British machinery and expertise. Other major cotton mill centers in Maharashtra included Ahmedabad and Nagpur.

Cotton mills began to spread to other parts of India in the late 19th and early 20th centuries, but Maharashtra remained the center of the Indian cotton industry. Today, Maharashtra is still the leading producer of cotton textiles in India.