The Clue What low-lying areas in Mumbai are prone to in monsoon
The Answer FLOOD
The answer "flood" fits the clue because low-lying areas in Mumbai often get overwhelmed with rain during the monsoon season. These areas cannot drain water quickly, leading to water accumulation. As a result, heavy rainfall can cause flooding, making it difficult for people to move around. This is a common problem in many parts of the city during the rainy months.