As per Census 2011, which of the following metro cities was the most populated in India?

Mumbai

The correct answer is Option (4) → Mumbai

As per Census 2011, the most populated metro city in India was Mumbai. It had a population of 18,394,392 according to the census data. Here's a breakdown of the other options:

• Delhi: 11,034,555
• Kolkata: 4,496,694
• Chennai: 4,646,732