Capital Intensity: Building a modern semiconductor fabrication plant (fab) requires $10–$20 billion in upfront capital, which is difficult to mobilize without long-term, low-interest funding models.
Infrastructure Gaps: Foundational manufacturing requires ultra-stable power, massive amounts of high-purity water, and specialized industrial gas infrastructure, which remain challenging to scale rapidly.
Complex Supply Chains: The semiconductor industry is hyper-globalized; India historically lacked the specialized raw material supply chains and chemical processing industries required to support a local fab.
"False Starts" in Policy: Previous policy attempts were often piecemeal and lacked the long-term, multi-generational continuity necessary to convince global players of India's stability.
Regulatory Hurdles: Navigating environmental clearances, land acquisition, and complex labor laws historically created "red tape" that discouraged global firms from setting up complex facilities.
Low R&D Spend: Historically, a smaller percentage of GDP has been allocated to basic scientific research compared to global leaders, limiting deep-tech breakthroughs in materials science.
Industry-Academia Disconnect: Research in universities often remains theoretical, lacking the necessary bridge to commercialization or "lab-to-fab" translation.
IP Ownership: While India has immense design talent, much of it has historically been utilized for service-based design work (outsourced by foreign firms) rather than developing proprietary Intellectual Property (IP).
Prohibitive Cost of IP: Developing or licensing cutting-edge IP cores is expensive, creating a barrier to entry for smaller, indigenous hardware startups.
Focus on Service over Product: The Indian tech ecosystem matured primarily as a service provider; pivoting to a "product-first" mentality requires a different risk-taking culture and venture capital landscape.
Academic Specialization: While India produces many engineers, there has been a historical shortage of specialized training in cleanroom protocols, photolithography, and material physics.
Brain Drain: Many top-tier researchers and engineers have historically migrated to the US or East Asia, where advanced research infrastructure was more readily available.
Lack of "Full-Stack" Exposure: Most Indian engineers work on specific slices of the design chain; fewer have exposure to the entire lifecycle, from silicon-level physics to final packaging.
Lack of Domestic Demand Anchoring: Without a robust domestic market for high-end electronics (e.g., servers, smartphones, EVs), it is difficult to justify the economies of scale required for local manufacturing.
Geopolitical Dependencies: For decades, India remained heavily dependent on imports, making it difficult to compete with established East Asian ecosystems that had decades of protection and state-led support.
Global Competitive Intensity: Incumbent nations have deep-rooted ecosystems; breaking into this market requires not just competitive pricing but also achieving "trusted partner" status in the global supply chain.
Economies of Scale: Fabs need to operate at high capacity to be profitable; the difficulty of securing consistent, high-volume orders in the early stages has stunted local growth.
Shift to "System-Level" Thinking: Recent policies are finally focusing on the entire value chain: design, manufacturing, and assembly/packaging.
Strategic Partnerships: Collaborating with established global players (via the Quad and other alliances) is now seen as the pragmatic path to acquiring technology transfers and operational expertise.
Deep Tech Funding: Emerging initiatives are attempting to formalize funding for "deep-tech" innovation to finally close the foundational research gap.