As India’s semiconductor efforts move from policy to construction, a pattern of regional specialisation is becoming visible. Rather than being spread evenly, activity is concentrating into clusters, with Gujarat, Assam and Karnataka emerging as three distinct centres, each contributing something different to the ecosystem.

Gujarat: manufacturing heartland

Gujarat, and Sanand and Dholera in particular, has taken the lead in physical manufacturing. It hosts assembly and test facilities and the country’s most ambitious front-end fab project. The state’s industrial history, proactive administration and infrastructure planning have made it the natural home for capital-intensive plants that need land, power and water at scale.

Assam: back-end in the northeast

Assam’s emergence as a semiconductor packaging location is notable both economically and geographically. A major assembly and test project there extends the industry beyond the traditional industrial belts and into the northeast, bringing high-technology manufacturing and skilled jobs to a region less associated with such investment. It broadens the geographic base of the whole effort.

Karnataka: the design brain

Karnataka, centred on Bengaluru, plays a different and long-established role. It is the country’s design and R&D hub, home to a large concentration of multinational semiconductor design centres and a deep pool of design, verification and software talent. Where Gujarat and Assam supply the hands, Karnataka has long supplied much of the design intellect.

• Gujarat: fabrication, assembly and test at scale.
• Assam: back-end packaging, widening the geographic footprint.
• Karnataka: chip design, verification and R&D depth.

Why clustering helps

Clusters are efficient. When suppliers, talent and infrastructure concentrate in one place, costs fall and knowledge spreads, making each new project easier than the last. The open question is how well these regional centres connect into a single national supply chain rather than developing in isolation. For engineers training in VLSI, the geography is worth knowing, as it hints at where design roles versus manufacturing roles are most likely to be found.