Ask ten Mumbaikars who runs the city and you will get ten answers: the mayor, the chief minister, the municipal commissioner, "the builders", the monsoon. Each of these is partly right, which is the problem. Mumbai's governance is layered, and most of our frustration with it comes from knocking on the wrong door.
This is my attempt at a map. It is not about who is in power at any given moment, which changes, but about how the machinery is built, which mostly doesn't.
The corporation and its two halves
The Brihanmumbai Municipal Corporation, which almost everyone still calls the BMC, is governed by the Mumbai Municipal Corporation Act of 1888. Yes, 1888. The Act has been amended many times, but its basic design survives: a deliberative wing made up of elected representatives, and an executive wing headed by a professional administrator.
This split is the single most useful thing to understand. Mumbai's municipal government is not like a state or national government, where the elected leader also runs the administration. Here, the people you vote for debate, approve and question; the person who actually runs the departments is appointed.
Corporators and the house
The deliberative wing is the general body, often simply called the house. It is made up of 227 elected corporators, each representing an electoral ward, plus a small number of nominated members. Elections are normally held every five years, and seats are reserved on a rotating basis for women, Scheduled Castes, Scheduled Tribes and Other Backward Classes.
One point of confusion worth clearing up early: the 227 electoral wards are not the same thing as the two dozen or so administrative wards you see on BMC signboards. An administrative ward such as K/West contains several electoral wards, each with its own corporator.
The house passes the budget, frames and amends regulations, and approves major policy decisions. Corporators also sit on committees, raise questions about specific works, and have access to discretionary funds for local projects such as footpath repairs or small beautification works. In practice, a good corporator is also a fixer, the person who chases the ward office when your drain has been blocked for a fortnight.
It is worth knowing that there have been stretches when the elected house's term has lapsed before fresh elections could be held, most recently from March 2022 until the elections of January 2026. In those periods, the state has appointed the municipal commissioner as administrator, exercising the powers of the house and its committees as well. The corporation keeps running, but without the elected layer that is supposed to question it.
The mayor: first citizen, limited powers
The mayor is elected by the corporators from among themselves, for a term of two and a half years, with the post reserved in rotation. The mayor presides over meetings of the house, represents the city on formal occasions, receives visiting dignitaries and is, officially, Mumbai's first citizen.
What the mayor does not do is run the administration. The mayor cannot, on their own authority, sanction a contract, transfer an engineer or order a road to be relaid. The role carries real influence, because a mayor with political weight can set the tone of debate and push the administration in public, but in formal terms it is largely ceremonial. If you have ever wondered why mayoral announcements in Mumbai rarely sound like executive orders, this is why.
The municipal commissioner: where executive power sits
The executive head of the corporation is the municipal commissioner, a senior officer of the Indian Administrative Service appointed by the Maharashtra government. The commissioner is not elected and does not answer to the voters directly. Formally, the commissioner is accountable to the house through its committees and, in practice, also to the state government that made the appointment.
The commissioner prepares the budget, runs every department, signs off on tenders and makes the decisions that shape your daily life: which roads get relaid, how the water supply is managed, when demolition drives happen. Below the commissioner sit several additional municipal commissioners, each overseeing a cluster of departments or a set of geographic zones, and deputy municipal commissioners who supervise groups of wards.
The result is a system in which the most powerful person in the corporation is accountable upward to the state more than outward to residents. Whether that is a sensible safeguard against local politics or a democratic deficit is a debate worth having; either way, it is the structure we live in.
The standing committee and other statutory committees
If the house is the corporation's parliament, the standing committee is its finance ministry and audit desk rolled together. It is a smaller body of corporators that scrutinises the budget before it goes to the house and approves contracts above a set value. Because so much of the BMC's spending flows through large contracts, the standing committee is where much of the real bargaining over civic works has historically taken place.
There are other statutory committees too: an improvements committee dealing with town planning matters, an education committee, and a committee that oversees BEST, the corporation's bus and electricity undertaking. Each administrative ward, or group of wards, also has a ward committee made up of the corporators from that area, which is meant to bring local priorities into decisions.
The wards and your assistant commissioner
For administrative purposes, Mumbai has long been divided into 24 wards, lettered from A to T, with some letters split into parts: F/North and F/South, H/East and H/West, K/East and K/West, P/North and P/South, the three R wards in Borivali, Kandivali and Dahisar, and so on. The largest wards are being split further, starting with P/North in Malad, which has been divided into P/East and P/West, so check the current list on the BMC portal if you need it precisely.
Each ward is headed by an assistant commissioner, and this is the officer who matters most to residents. The ward office handles licences for shops and hawkers, local solid waste management, maintenance of smaller roads and drains, removal of encroachments, building-related complaints, and a long list of other everyday tasks. If your complaint is about something on your street, the ward office is almost always where it lands.
What the BMC does not control
This is where most civic anger goes astray. A great deal of what shapes Mumbai sits outside the corporation entirely.
- The state government controls the police, land revenue and records through the collector, and major planning decisions, and it can override or direct the corporation in many matters.
- MMRDA, the Mumbai Metropolitan Region Development Authority, is a state body that plans and builds regional infrastructure, including most of the metro lines, several flyovers and the Atal Setu.
- MHADA and the Slum Rehabilitation Authority deal with public housing, old cessed buildings and slum redevelopment.
- MSRDC, another state corporation, built the Bandra–Worli Sea Link.
- Indian Railways runs the suburban trains, and the Mumbai Port Authority, a central body, controls large tracts of the eastern waterfront.
The BMC, for its part, runs water supply, sewerage, storm-water drains, most roads, solid waste, municipal hospitals and schools, and it has built large projects of its own, including the Mumbai Coastal Road. But when your local train is late, or your building is stuck in a slum redevelopment scheme, your corporator is not the person who can fix it.
Why the map matters
A friend in Dadar spent the better part of a year writing to the mayor's office about a flooded underpass that, it turned out, sat on railway land. Nobody was being obstructive; he was simply writing to the wrong institution. Mumbai rewards residents who know the machinery. The elected house can ask questions and apply pressure, the commissioner and the ward office can act, and a surprising amount of the city belongs to someone else altogether. Knowing which is which does not make the system fair, but it does make it a great deal less mysterious, and a resident who knows where power sits is much harder to fob off.
