When India is discussed in semiconductors, the conversation has often centered on design sites and software talent. That structure is starting to change. CG Semi began commercial production on July 4, 2026, at its G1 OSAT (outsourced semiconductor assembly and test) facility in Sanand, Gujarat. In other words, mass production in the back end, where chips are assembled, tested, and shipped, has started inside India.
For procurement teams, the point is that a new location has been added to the supply-chain map. Back-end manufacturing gets less attention than front-end wafer fabrication, but chips cannot ship if assembly and test capacity is blocked. Where that capacity exists affects supply continuity.
From Groundbreaking to Mass Production in 27 Months
The period from groundbreaking to commercial production was 27 months. For a semiconductor assembly and test line, that is a fast pace, covering equipment installation, process stabilization, workforce training, customer qualification, and quality preparation. Prime Minister Narendra Modi attended the ceremony, underscoring that the government views the project as a national priority.
According to the Indian government, CG Semi's Sanand facility is India's third major semiconductor facility. It is not a one-off investment, but part of a broader sequence in which three facilities under the India Semiconductor Mission (ISM) have reached commercial production in a short period. The policy goal is to build a domestic semiconductor ecosystem spanning design, manufacturing, and packaging; this marks the move of the assembly and test layer into actual operation.
Scale and Structure: A Three-Company JV and ₹76 Billion Investment
The numbers are not small. The G1 facility has a maximum capacity of 300 million units per year, and CG Semi plans to invest more than ₹76 billion (about $870 million) in the G1 and G2 facilities over five years. G1 is starting first, with G2 planned as the next stage.
The structure also brings in overseas players. CG Semi is a three-company joint venture among CG Power and Industrial Solutions (Murugappa Group), Renesas Electronics, and Stars Microelectronics of Thailand. It combines a device manufacturer, Renesas, with the practical OSAT/EMS experience of Stars, bringing in the technology and operating know-how needed to launch back-end manufacturing. Rather than relying only on localization slogans, the model is designed to reach production quality quickly by partnering with established companies.
Why Fill the Back-End (OSAT) Gap First?
India's move into the back end first makes sense from the structure of the supply chain. Front-end wafer mass production requires a long and costly accumulation of equipment, materials, and yield know-how. OSAT, by contrast, has clearer demand visibility and a more legible path to investment recovery. As packaging becomes a bottleneck for AI data centers and electrification, securing assembly and test capacity first is a practical way to fill a real supply-chain gap.
The chips assembled and tested at the facility are expected to serve automotive, EV, consumer electronics, industrial equipment, and other applications, rather than being limited to one end market. The approach is to establish versatile back-end capacity first and build from there.
How Procurement Should Read India OSAT
From a supply-chain evaluation perspective, India's OSAT launch means that "another option" is becoming more realistic. Back-end capacity has long been concentrated in East and Southeast Asia. Adding India to that map gives procurement teams another point to consider when diversifying geopolitical risk.
Still, the start of operations and operational maturity are different things. Yield, customer qualification, and stable supply records still need to be built. On the workforce side, the facility employs young engineers from across India, including Jharkhand, Chhattisgarh, Madhya Pradesh, Bihar, Jammu and Kashmir, and Kerala, and shop-floor learning will continue from here. In practical terms, India can be evaluated as a serious supply candidate once continuous mass-production operation and quality data are in place.
Key Points of India's OSAT Start-Up
01
What happened
CG Semi began commercial production at the Sanand G1 OSAT facility on July 4, 2026. It reached mass production 27 months after groundbreaking, with Prime Minister Narendra Modi attending the ceremony.
02
Scale and structure
G1 can produce up to 300 million units per year, with more than ₹76 billion planned for G1 and G2 over five years. The CG Power, Renesas, and Stars Microelectronics JV supplements technology and operations from outside India.
03
Why OSAT first
The back end has a clearer investment recovery path than the front end and responds to packaging bottlenecks. India is securing versatile capacity first for automotive, EV, industrial, and other markets.
04
Procurement view
A new point has been added to the back-end supply map. It can become an option for geopolitical diversification, but yield, qualification, and continuous operation records still need to accumulate.
Business Impact and Checkpoints
For procurement and investment teams, the key points to track are: whether India's OSAT capacity overlaps with the products they source, such as automotive, industrial, and EV components; whether expansion including G2 proceeds as planned and how much of the nameplate annual capacity becomes effective; and whether customer qualification and quality data reach a level that allows India to be assessed as an alternative or complement to East Asian sites. India's back-end start-up is not just an opening ceremony. It is a long-term change that adds a new option to the supply-chain map. The next question is how far India's step from a design country to an "assembling" country translates into real supply.
