Infrastructure in Bengaluru encompasses the civic systems — roads, water supply, sewerage, electricity, solid waste management, healthcare, and telecommunications — that underpin the functioning of India's third-largest city across its Greater Bengaluru Authority (GBA) area of 712 km². Originally established as a cantonment town under the Mysore State and later administered by the British, Bengaluru has grown into a metropolis of over 14 million people driven largely by its information technology and biotechnology industries. This growth has placed enormous and accelerating strain on infrastructure that was not designed to accommodate it. Bengaluru's built-up area rose from approximately 8 per cent of the city's land area in 1973 to 87.6 per cent by 2025, while green cover, open water bodies, and permeable surfaces declined sharply over the same period. Urban infrastructure improvement consequently stands as one of the city's foremost governance and policy challenges.

Governance Bengaluru's infrastructure was historically managed by the Bruhat Bengaluru Mahanagara Palike (BBMP), formed in 2007 by merging the old Bangalore Mahanagara Palike with seven surrounding city municipal councils. At its peak, the BBMP governed 243 wards across 712 km² with a population of over 12 million — making it one of the largest municipalities in the world by area and population. By the mid-2010s, it had become apparent that the BBMP was structurally incapable of delivering effective urban services at this scale. BBMP elections had not been held since 2020, meaning the city was governed by appointed administrators rather than elected councillors for five consecutive years. The BBMP Restructuring Committee had proposed a three-tier governance model as early as 2015, but the recommendation lay dormant for nearly a decade.

The Greater Bengaluru Governance Act, 2024 (Karnataka Act No. 36 of 2025), introduced in the Karnataka Legislative Assembly on 23 July 2024 and brought into force on 23 April 2025, established the Greater Bengaluru Authority (GBA) as the apex metropolitan governance body. The GBA officially replaced the BBMP on 15 May 2025; the BBMP itself was formally dissolved on 2 September 2025 after completing the administrative transition.

The GBA is structured in three tiers. At the apex is the Authority itself, chaired ex officio by the Chief Minister of Karnataka with the Minister for Bengaluru Development as Vice-Chairperson. Below it are five newly constituted city corporations — Bengaluru Central, Bengaluru North, Bengaluru South, Bengaluru East, and Bengaluru West — each with its own elected mayor and deputy mayor serving 30-month terms, improved from the previous one-year term. Below the corporations are ward committees, with 369 wards delimited and notified by 19 November 2025 — an increase from the previous 243 wards intended to bring governance closer to residents. Each corporation has been divided into two administrative zones, giving the city ten zones in total. Corporation elections are expected in mid-2026, which will restore elected local governance to Bengaluru for the first time since 2020.

The GBA serves as the Planning Authority for the entire 712 km² metropolitan area, responsible for preparing and enforcing the Master Plan and strategic spatial development plans. It coordinates and supervises the parastatals under its umbrella — the Bangalore Development Authority (BDA), Bangalore Water Supply and Sewerage Board (BWSSB), BESCOM, Bangalore Metropolitan Transport Corporation (BMTC), and Bangalore Metro Rail Corporation Limited (BMRCL) — and reviews major infrastructure projects that cross corporation boundaries. The Act provides for the GBA to establish up to seven corporations within its jurisdiction; the initial implementation began with five. An August 2025 amendment to the Act confirmed that corporation elections and municipal autonomy are fully protected under the 74th Constitutional Amendment.

The Bangalore Development Authority (BDA) retains jurisdiction over the peripheral 582 km² outside the GBA's city area, with its mandate now focused on large-scale arterial infrastructure and land development. The Bengaluru Metropolitan Region Development Authority (BMRDA) continues to coordinate planning at the broader metropolitan region level, encompassing Bengaluru Urban, Bengaluru North, and Bengaluru South districts.

History of city planning

Bengaluru was founded in 1537 by Kempe Gowda I, a vassal of the Vijayanagara Empire, who built a mud fort and divided the town within it into petes (localities) for different artisans and traders, with markets organised by commodity. The town had two main streets — Chikpete and Dodpete — whose intersection, Dodpete Square, formed the commercial heart of early Bengaluru. The town was enclosed by nine gates; the four main gates were at Halasuru (east), Sondekoppa (west), Yelahanka (north), and Anekal (south). Kempe Gowda I also sanctioned the construction of lakes within the landlocked city as a primary source of water supply — the origin of the interlocking lake system that would define the city's ecology for centuries. The city's residential areas developed further under Kempe Gowda II, who built four towers to demarcate Bengaluru's boundaries, located in what are today Lal Bagh, Kempambudhi Tank, Ulsoor Lake, and the vicinity of the Ramana Maharshi Ashram.

Hyder Ali took possession of Bengaluru in 1758 and strengthened the fort with stone walls. His son Tipu Sultan continued its development, including the establishment of the Lal Bagh botanical garden. After the city was captured by the British following the Fourth Anglo-Mysore War in 1799, the Diwan of Mysore Purnaiah oversaw infrastructure improvements between 1799 and 1811, renovating the fort temple and establishing a choultry for travellers. The British moved their garrison from Srirangapatna to Bengaluru in 1831, establishing the Bangalore Cantonment. Commissioner Sir Mark Cubbon (1834–1861) introduced Kannada as the official language, sanctioned road and bridge construction, and established the telegraph system. The first railway line between Bengaluru and Jolarpet was laid in 1864 under his directives. His successor Lewin Bentham Bowring (1862–1870) established the sewerage system and organised law enforcement.

The Town Municipality of Bangalore was constituted in 1862, and a parallel municipality was established in the Cantonment the same year. Despite the establishment of these bodies, civic conditions remained poor — uncovered drains up to ten feet deep were common, and waste removal was largely outsourced to contractors with limited efficacy. The bubonic plague outbreak of 1897–98 forced dramatic improvements in public health and sanitation infrastructure, with telephone lines laid for coordination and hundreds of unsanitary buildings demolished.

To relieve congestion, new residential extensions — Malleswaram and Basavanagudi — were formed in the late 19th century, with new roads linking them to the older town. Avenue Road became the commercial hub of the city, and several circles and roads were named in honour of Mysore royalty and civic figures. In 1905, Bengaluru became one of the first cities in Asia to receive electricity, powered by the Shivanasamudra hydroelectric plant. After Indian independence in 1947, the two municipalities of the cantonment and Bangalore town were united under the Bangalore Municipal Corporation Act LXIX (1949) to form the Bangalore City Corporation (BCC), with 50 wards and 75 councillors. The first municipal elections under adult franchise were held in December 1950. The BDA Act of 1976 reconstituted the City Improvement Trust Board to form the Bangalore Development Authority (BDA), charged with planned metropolitan development.

Roads

Bengaluru's road network spans approximately 10,200 km, yielding a road density of 8.2 km per square kilometre — significantly lower than Delhi's and structurally insufficient for the city's vehicle fleet, which reached 1.23 crore registered vehicles by March 2025, with approximately 2,000 new vehicles added each day. Vehicle density has reached 823 vehicles per kilometre of road. Mahadevapura and Whitefield zones in East Bengaluru experience the highest congestion, and the IT corridor on the Outer Ring Road is among the most congested stretches in India.

The main arterial roads entering the city include Bellary Road (north), Tumkur Road and Mysore Road (west), Kanakapura Road, Bannerghatta Road, and Hosur Road (south), and Old Madras Road (east). Many of Bengaluru's colonial-era streets were widened into commercial corridors after independence. M.G. Road, Commercial Street, and Brigade Road became major shopping and corporate areas, while B.V.K. Iyengar Road remains a retail hub. The city's road network is mainly radial, converging at the city centre, supplemented by ring roads and planned expressways.

Road safety is a serious concern. Fatal road crashes reached a 16-year high in 2023, with 894 crashes resulting in 921 deaths. Pedestrians, motorcyclists, and cyclists together accounted for 91 per cent of those fatalities. Fatalities declined modestly in 2024 to 893 deaths across 4,784 crashes — a 3.97 per cent reduction — attributed partly to blackspot rectification works and stricter enforcement by the Bengaluru City Traffic Police (BTP).

Ring roads and expressways The Outer Ring Road (ORR), developed by the BDA between 1996 and 2002 as a 60-kilometre ring road to remove heavy vehicles from downtown Bengaluru, has since become the backbone of the city's IT economy, with major technology parks concentrated along its eastern arc between Marathahalli and Electronic City. The GBA unveiled a ₹450-crore redevelopment blueprint for the ORR corridor in 2025, encompassing road widening, junction redesign, bus priority lanes, and pedestrian infrastructure.

The Bengaluru Business Corridor (BBC), formerly the Peripheral Ring Road (PRR) before rebranding in January 2024, is a proposed 8-lane, 100-metre-wide access-controlled greenfield expressway of approximately 73.5 km connecting Tumkur Road in the north-west to Hosur Road in the south-east via Bellary Road, Old Madras Road, and Sarjapur Road. Stalled for over two decades due to land acquisition disputes, the project has a revised completion target of December 2027, though as of mid-2026 no concessionaire had been finalised and land acquisition remained incomplete. A proposed extension — PRR-2 — would add a 30-kilometre connector from Hosur Road to Mysore Road via Bannerghatta and Kanakapura Road. The Satellite Town Ring Road (STRR), spanning over 280 km, was partially inaugurated by Prime Minister Narendra Modi in March 2024 and is planned to connect 12 satellite towns including Doddaballapur, Hosur, and Anekal into a single peripheral corridor.

The BTP master plan submitted to the GBA in April 2026 proposed 35 new flyovers, 25 underpasses, and 101 skywalks, with a focus on making 25 major junctions signal-free — including Hebbal, Sarakki Circle, and Dalmia Junction on Bannerghatta Road. East Bengaluru was identified as the highest-priority zone for grade separation works. The Karnataka government has also proposed 150 km of flyovers and elevated corridors across the city, though Bengaluru has a documented history of infrastructure projects stalling mid-construction due to funding disruptions linked to electoral cycles.

B-SMILE and tunnel roads