Explanations:The city of Bombay, now known as Mumbai, was originally a collection of seven islands. These islands were connected through extensive land reclamation projects over time to form the larger city. The original seven islands that formed Bombay are: Colaba, Old Woman's Island (also known as Little Colaba), Bombay Island (the largest of the islands), Mazagaon, Parel, Worli, and Mahim. Dadar, while not one of the seven islands, is part of the historical geography of the city and was connected to the main landmass through reclamation projects.
Chembur, on the other hand, is not one of the original islands. It is a newer area that developed after the original islands were connected. Chembur is located on the mainland and was not part of the original archipelago that formed Bombay. This makes Chembur the correct answer to the question, as it is not one of the original islands that formed the city.
Understanding the historical geography of Bombay is essential for comprehending the city's development. The original islands were connected through various land reclamation projects, which involved filling in the areas between the islands to create a larger, more connected landmass. This process transformed the city from a collection of small islands into the bustling metropolis it is today.
It is important to note that while the original islands are significant in the history of Bombay, the city has expanded far beyond these areas through urban development and land reclamation. Chembur, being a part of this later development, is not one of the original islands that formed the city.