Having become a global trading centre, the city of Mumbai implemented an ambitious urban planning project in the second half of the 19th century. It led to the construction of ensembles of public buildings bordering the Oval Maidan open space, first in the Victorian Neo-Gothic style and then, in the early 20th century, in the Art Deco idiom. The Victorian ensemble includes Indian elements suited to the climate, including balconies and verandas. The Art Deco edifices, with their cinemas and residential buildings, blend Indian design with Art Deco imagery, creating a unique style that has been described as Indo-Deco. These two ensembles bear testimony to the phases of modernization that Mumbai has undergone in the course of the 19th and 20th centuries.

Two waves of urban development of Mumbai in the 19th and 20th centuries transformed the city from a fortified trading outpost to the first city of India. The first expansion included the construction in the 1880s of a group of Victorian Gothic public buildings and the creation of the Oval Maidan.

The second expansion was the Backbay Reclamation Scheme in the early 20th century, which offered a new opportunity for Bombay to expand to the west with Art Deco residential, commercial and entertainment buildings and the creation of the Marine Drive sea front.

Today the Oval Maidan offers a spectacular ensemble of Victorian Gothic buildings on its eastern side, and another impressive ensemble of Art Deco buildings on its western side as a testimony to the modernization phases that Mumbai went through leading to a modern independent India in 1947.