Stacked one on top of the other between Malad and Dahisar, the three administrative wards that comprise the R ward in the western suburbs of Greater Mumbai mark the entry into the city from Mira Bhayandar, Vasai-Virar, and Uttan in the Mumbai Metropolitan Region (MMR).

While the R South ward comprises areas in Malad; the R Central ward comprises Kandivli and Gorai, and the R North ward, comprising Dahisar, marks the boundary between the MMR and Greater Mumbai. All three wards also contain the no-development zone of Sanjay Gandhi National Park (SGNP), which gives the area a large open space and a high ratio of per capita open space as well. Approximately 60 per cent of the combined R ward comprises parts of SGNP, home to two reservoirs that provide drinking water to Mumbai: Vihar and Tulsi. The Tulsi dam comes within the jurisdiction of the R wards.