India's first undersea tunnel is being constructed (expected to be completed by Nov 2023) in which of the following city?

Mumbai

India's first undersea tunnel is being constructed in Mumbai. It is part of the Mumbai Coastal Road Project, which is a 10.58-kilometer long coastal road that will connect Marine Drive to the Bandra-Worli Sea Link. The undersea tunnel is 2.07 kilometers long and will run 17-20 meters below sea level. It is expected to be completed by November 2023.