Coimbatore Bengaluru Expressway Route Map, Latest News, DPR & Status (2026)

No, as of July 2026, the Coimbatore Bengaluru Expressway is not officially approved or sanctioned by NHAI or MoRTH. It remains a conceptual proposal advocated by regional trade groups.

Currently, there is no official Coimbatore Bengaluru Expressway DPR being prepared, as the project has not been sanctioned by the NHAI or MoRTH.

The Coimbatore Bengaluru Expressway Latest News indicates that the project remains a public proposal and demand from local trade bodies rather than an officially approved national highway project.

An official Coimbatore Bengaluru Expressway Map does not exist since no route has been finalized or approved by the NHAI.

There is no construction update for the Coimbatore Bengaluru Expressway since the project has not been sanctioned and civil works have not commenced.

There is no set Coimbatore Bengaluru Expressway Completion Date, as the project is not approved and remains in the conceptual stage.

The term Coimbatore Bengaluru Expressway is commonly used for the high-capacity road corridor connecting Bengaluru and Coimbatore, but there is no single officially designated expressway of that exact name covering the entire journey. The Bengaluru–Coimbatore corridor is made up of multiple National Highway sections and improvement projects, including the Hosur–Dharmapuri corridor, NH-948 and the Thoppur–Mettur–Bhavani/Erode connectivity.

The Bengaluru–Coimbatore connectivity programme includes several NHAI and National Highway projects rather than one standalone expressway project. Major works have included the Hosur–Dharmapuri four-laning packages on the Bengaluru–Coimbatore corridor, while NHAI is also pursuing a separate DPR for four-laning the Karnataka–Tamil Nadu border to Coimbatore section of NH-948, with a tentative length of about 120 km.

The conventional Bengaluru–Coimbatore highway corridor runs broadly from Bengaluru through Hosur, Dharmapuri, Thoppur, Salem and Erode toward Coimbatore. An alternative Bengaluru–Coimbatore route uses the NH-948 corridor through Bengaluru, Kanakapura, Malavalli, Kollegal, Chamarajanagar, Hasanur, Sathyamangalam and Annur before reaching Coimbatore.

A Coimbatore Bengaluru Expressway map should distinguish the different corridors that provide Bengaluru–Coimbatore connectivity. The main NH-44 route runs through Hosur, Krishnagiri, Dharmapuri, Thoppur and Salem, while NH-948 provides an alternative route through Kanakapura, Malavalli, Kollegal, Chamarajanagar and Sathyamangalam. The two routes are not one continuous officially named expressway.

There is no single final alignment for an officially named Coimbatore Bengaluru Expressway. The existing high-capacity corridor primarily follows NH-44 from Bengaluru through Hosur, Krishnagiri, Dharmapuri and Salem toward Coimbatore, while NH-948 follows a different Bengaluru–Kanakapura–Malavalli–Chamarajanagar–Sathyamangalam–Coimbatore alignment. NHAI's current DPR exercise for the Karnataka–Tamil Nadu border to Coimbatore section of NH-948 is a separate four-laning project.

A single official length should not be assigned to the 'Coimbatore Bengaluru Expressway' because the name refers to a broader corridor rather than one sanctioned expressway. NH-948 itself runs for roughly 317 km between Bengaluru and Coimbatore, while individual projects on the Bengaluru–Coimbatore corridor have substantially shorter lengths. NHAI's current DPR tender for the Karnataka–Tamil Nadu border to Coimbatore section of NH-948 specifies a tentative length of about 120 km.

There is no single approved project cost for a 'Coimbatore Bengaluru Expressway'. Costs belong to individual corridor projects and packages. For example, the three Hosur–Dharmapuri packages were awarded separately, while NHAI's current four-laning DPR for the Karnataka–Tamil Nadu border–Coimbatore section of NH-948 is still at the consultancy/DPR stage, so a final construction cost for that section has not been established.

The Bengaluru–Coimbatore corridor is a combination of completed, operational and ongoing highway works rather than one expressway with a single construction status. On the Hosur–Dharmapuri section, Package 3 was completed on 30 March 2024, while Packages 1 and 2 were still reported separately in government project-status records. At the Coimbatore end, NHAI initiated a DPR process in 2026 for four-laning the Karnataka–Tamil Nadu border to Coimbatore section of NH-948.

A major current development is NHAI's 2026 tender for preparation of a Detailed Project Report for four-laning the Karnataka–Tamil Nadu border to Coimbatore section of NH-948, with a tentative length of 120 km. The tender was issued again in August 2026, and a September 2026 corrigendum was published. This is a DPR-stage highway project and should not be described as an already sanctioned new expressway under construction.

No single new greenfield expressway officially named the Coimbatore Bengaluru Expressway has been established. The Bengaluru–Coimbatore connection is being improved through multiple National Highway projects, including four-laning and upgrading of existing corridors. Calling the entire Bengaluru–Coimbatore route a single new greenfield expressway would therefore be misleading.

The principal road connections include NH-44 through Bengaluru, Hosur, Krishnagiri, Dharmapuri, Thoppur and Salem toward Coimbatore, and NH-948 through Kanakapura, Malavalli, Kollegal, Chamarajanagar, Hasanur, Sathyamangalam and Annur. The Bengaluru–Coimbatore corridor also includes associated highway sections such as the Thoppur–Mettur–Bhavani/Erode route.

NH-948 provides an alternative Bengaluru–Coimbatore route through Kanakapura, Malavalli, Kollegal, Chamarajanagar, Hasanur, Thimbam, Sathyamangalam, Punjai Puliampatti and Annur before joining NH-544 near Coimbatore. The route is distinct from the Bengaluru–Hosur–Krishnagiri–Dharmapuri–Salem corridor.

NHAI is preparing a Detailed Project Report for four-laning the Karnataka–Tamil Nadu border to Coimbatore section of NH-948. The current tender describes the tentative project length as approximately 120 km. Because the DPR is still being prepared, the final alignment, construction cost, package structure and construction schedule should not yet be presented as confirmed.

The available government project information does not establish a single continuous new expressway from Bengaluru to Coimbatore. Instead, connectivity is being improved through multiple National Highway and corridor projects. The appropriate description is therefore a developing high-capacity Bengaluru–Coimbatore road corridor rather than a single officially sanctioned expressway.

The combination of four-laning, greenfield sections and highway upgrades is intended to improve capacity and travel reliability between Bengaluru, Hosur, Dharmapuri, Salem, Erode and Coimbatore. Improvements to NH-948 are also intended to provide an alternative Bengaluru–Coimbatore route through southern Karnataka and northern Tamil Nadu.