India’s NHAI plans to widen the Bengaluru-Kolar section of NH-75 into a 10-lane corridor, aiming to reduce congestion and improve regional connectivity. The project, stretching from Hosket to the Andhra Pradesh border, is expected to boost long-term economic growth.
Overview of the Expansion Plan
The National Highways Authority of India (NHAI) has announced an ambitious infrastructure upgrade involving the Bengaluru–Kolar stretch of National Highway 75 (NH-75). The existing highway, currently four to six lanes in most parts, will be expanded into a 10-lane corridor to accommodate growing traffic volumes and support regional development. This project is part of NHAI’s broader commitment to decongesting critical corridors and improving road safety and efficiency.
Strategic Importance of NH-75
The NH-75 serves as a key link between Bengaluru and eastern Karnataka and eventually connects to Chennai via the Chennai–Bengaluru Industrial Corridor. This route is heavily used by freight carriers and commuters alike. The Bengaluru–Kolar stretch is particularly congested due to daily work traffic and industrial transport. The upgrade will reduce travel time between Bengaluru and Kolar, which currently takes 2–3 hours during peak hours. You can read more about the (Highway) for context.
Scope and Design Features
The proposed expansion will include 10 lanes—six main carriageway lanes and four service lanes (two on each side). This design ensures smooth flow for through-traffic while also providing easy access for local and slow-moving vehicles. NHAI has proposed a modern design with dedicated pedestrian walkways, intelligent traffic systems (ITS), and improved drainage to prevent flooding during monsoons. Service roads and underpasses will reduce disruptions for local residents. This model follows the successful.
he National Highways Authority of India (NHAI) has initiated a major infrastructure upgrade of the Bengaluru–Kolar stretch of National Highway 75 (NH-75), expanding it into a 10-lane express corridor. This move is aimed at reducing traffic congestion, boosting freight movement, and improving travel time between Bengaluru and the industrial town of Kolar. The project falls under the umbrella of the Baramulla Pariyojana, India’s ambitious road development initiative. (NHAI)
Environmental and Land Acquisition Aspects
Environmental clearances are underway, and land acquisition is expected to affect certain areas of Hosket, Narsapura, and Malaga. Compensation packages and rehabilitation efforts will be undertaken per NHAI’s guidelines. The authority has assured that minimal ecological disruption will be ensured through compensatory afforestation and water conservation techniques. As seen in consultations will be held to address community concerns.
Boost to Economy and Connectivity
The upgraded highway will support logistics, manufacturing, and real estate along the Bengaluru–Kolar belt. The region is witnessing rapid industrial growth with major investments in electronics and automotive hubs in and around Narsapura and Hosket. Improved road connectivity is likely to attract more investments, generate employment, and reduce logistics costs. This aligns with India’s broader plan.
Project Timeline and Execution
The DPR (Detailed Project Report) has been submitted, and tenders are expected to be floated by late 2025. The construction will be divided into multiple packages to speed up execution, with the first phase expected to start by mid-2026. The entire stretch is targeted for completion by 2029. The project is expected to follow EPC (Engineering, Procurement, and Construction) mode under NHAI’s direct supervision.
Q1. What is the purpose of expanding the Bengaluru–Kolar NH-75 into a 10-lane highway?
The expansion aims to reduce traffic congestion, improve travel time, and support industrial growth along the Bengaluru–Kolar corridor.
Q2. What will the new 10-lane highway include?
The upgraded NH-75 will have 6 main lanes for high-speed traffic and 4 service lanes for local vehicles, along with pedestrian underpasses and smart traffic systems.
Q3. When will the NH-75 expansion project start and finish?
Construction is expected to begin by mid-2026, with the entire project targeted for completion by 2029.
Q4. Which areas will be affected by land acquisition?
Areas such as Hosket, Narsapura, and Malaga in Karnataka will be impacted, with compensation provided under government norms.
Q5. How will this project benefit the region?
It will enhance regional connectivity, boost logistics efficiency, attract investments, and generate employment in surrounding industrial zones.
