Chennai–Bengaluru Industrial Corridor
Links south India's two largest industrial economies.
The Techadyant Corridor Readiness Score rates maturity, capital momentum, connectivity and opportunity openness (each 0–25). This corridor ranks #2 of 11. Compare all corridors →
On the map
Corridor insights
- 2014–15JICA master plan (~US$181 bn / 20 yr estimate)
- 30 Dec 2020CCEA approves Tumakuru + Krishnapatnam trunk infra
- 2023PM lays foundation stone, Tumakuru township
- 8 Jan 2025PM lays foundation stone, Krishnapatnam / KRIS City
- Nov 2025300-acre Japanese township announced, Tumakuru
- 2026–27Phase-1 plug-and-play targeted (Tumakuru + Krishnapatnam)
Source: DPIIT/NICDC status report (31 Oct 2025) + PIB / India Investment Grid. Investment-potential and jobs figures are official projections.
At a glance
- Route & length~560 km · 3 states
- StatesTamil Nadu, Karnataka, Andhra Pradesh
- ProgrammeJICA master plan
- StatusIn build-out · Tumakuru activation area on ground
Anchor nodes
Tumakuru node (Vasanthanarasapura)
OperationalTumakuru is the only CBIC node with operational tenants. Its 530-acre Tumakuru Machine Tool Park — India’s first integrated machine-tool park — is developed with 158 ready-to-build plots, of which 22 (128 acres) have been taken by large companies, and a co-located 160-acre Japan Industrial Township is fully occupied by 107 firms including Toyota. The node therefore extends a live industrial base rather than launching a greenfield bet: Karnataka already accounts for ~52% of India’s machine-tool output and ~62% of exports.
View node →Krishnapatnam (KRIS City)
Under constructionKrishnapatnam — branded KRIS City — is Andhra Pradesh’s flagship port-linked CBIC node, built beside the Adani-run Krishnapatnam Port and uniquely bridging the CBIC and VCIC corridors. The SPV (NKICDL, a 50:50 NICDIT–APIIC venture) was incorporated on 7 August 2018, environmental clearance is in hand and master planning is complete for the ~2,500-acre activation area.
View node →Ponneri node (Engineering Hub)
PlannedPonneri is the corridor’s largest planned node — ~21,966 acres, with ~13,581 acres of greenfield land — conceived in the JICA master plan as an “Engineering Hub for Auto & Machinery” at a development cost of ₹32,713 crore, 36 km from Chennai with Ennore Port inside its boundary. On paper it would house a 2025 node population of roughly 1.29 million.
View node →Why it matters
The CBIC connects south India's two largest industrial economies — Bengaluru's R&D and electronics depth with Chennai's automotive and port base — across a ~560 km belt planned by JICA. Its thesis is less about new geography than about thickening the existing southern manufacturing core and giving it a dedicated export channel.
Three nodes anchor it. Krishnapatnam (“KRIS City”, Andhra Pradesh) is the port-linked, export-oriented node — foundation laid in early 2025, ~₹10,500 cr of investment targeted, Phase-I trunk infrastructure due by end-2026. Tumakuru (Karnataka) is under construction with plug-and-play infrastructure on a similar timeline, and Ponneri (Tamil Nadu), ~4,000 acres north of Chennai, is master-planned for engineering and manufacturing.
This is the corridor where post-PLI electronics manufacturing and the auto/EV supply chain are most likely to deepen. For MSMEs the entry points are component manufacturing, machine-vision and factory automation, and the logistics economy forming around the three nodes.
The payoff depends on the nodes activating on schedule and on Tamil Nadu, Karnataka and Andhra Pradesh coordinating incentives rather than competing for the same investors — a live risk for any multi-state corridor.
Related research
Official sources
Track this corridor
Get an email when this corridor’s status, nodes or our analysis changes.