Deep Tech Starts as a Venture. It Scales as Infrastructure.

TL;DR

• Deep tech doesn’t stay a venture capital problem for long. Once a company moves from prototype to physical scale, a fab, a gigafactory, a launch pad its dominant capital needs shifts from equity to project-style debt and infrastructure finance.
• Indian Semiconductor Startups Raise $61.9 Mn In H1 2026, while approved project level investment under the India Semiconductor Mission has reached about ₹1.65 lakh crore (~$19 billion) across 12–13 projects, a scale gap of roughly 300x between venture and infrastructure capital in the same sector.
• Tata Semiconductor Manufacturing raised ₹6,835 crore (~$735 million) in project debt from five foreign banks HSBC, MUFG, DBS, First Abu Dhabi Bank, and ANZ to help fund its ₹91,000 crore Dholera fab, a textbook example of infrastructure-style lending entering deep tech.
• Ola Electric’s gigafactory build shows the full capital-stack handoff in one company: venture equity, then a debt-heavy $384 million round from Temasek and SBI, then $100 million in 10-year project debt from Bank of Baroda, then a public listing.
• Sovereign-linked infrastructure vehicles like India’s National Investment and Infrastructure Fund (NIIF) backed by ADIA, DFC, and ADB are already investing in deep-tech-adjacent manufacturing such as Ather Energy, pointing to where the next layer of capital needs to come from.

Quick Answer

India’s deep-tech ecosystem doesn’t primarily need more venture capital, it needs a functioning handoff from venture capital to the pools of capital that finance physical infrastructure. A semiconductor, battery, space, or defence-tech company moves through R&D, IP, pilot facility, manufacturing, and long-term supply contracts and each stage calls for a different kind of capital: venture capital for the R&D and IP stage, growth equity and strategic capital for the pilot stage, and project finance, infrastructure funds, and sovereign capital once the company needs a fab, a gigafactory, or a launch facility.
The bottleneck in India today sits precisely at that handoff.

The Capital Stack Is Not One Thing- It’s a Sequence

A software company can go from Series A to scale using the same kind of capital through out more equity, at higher valuations, from the same category of investor. Deep tech doesn’t work that way. A semiconductor company, a space-launch company, a battery manufacturer, or a defence-tech company moves through a sequence that looks more like industrial development than software scaling: R&D → IP → pilot facility → manufacturing → infrastructure → long-term contracts. Each stage has a different risk profile, and each calls for a fundamentally different kind of capital.

Early stage venture capital is well suited to funding R&D and IP betting on a small team and an unproven technical thesis. Deep-tech-focused funds to back space, defence, advanced manufacturing, energy, and AI startups, exist precisely to underwrite this stage, where the risk is almost entirely technological rather than commercial. But once that same company needs to build a pilot facility, and then a full manufacturing plant, the capital requirement changes in both scale and character. It stops looking like a venture bet and starts looking like an infrastructure project: large, front-loaded, tied to physical assets, and better suited to debt, strategic capital, and project finance than to another round of dilutive equity.

The scale mismatch this creates is stark in India’s semiconductor sector specifically., VC funding into semiconductor startups was around $61.9 million in H12026 “modest,” as one report described it, “due to long timelines, capital intensity and limited near-term commercial validation.” Over the same period, the government’s India Semiconductor Mission had approved roughly ₹1.65 lakh crore (about $19 billion) in project-level investment commitments across 12–13 fabrication and packaging facilities, according to government and industry filings. That is a gap of roughly two orders of magnitude between the venture capital feeding the design ecosystem and the infrastructure capital building the manufacturing base those designs will eventually need. Venture capital is doing its job at the top of the stack. The problem is what happens or doesn’t in the layers below it.

Where the Handoff Is Actually Happening

The good news is that India already has live examples of this handoff working, even if it isn’t yet systematic.

Tata Semiconductor Manufacturing’s ₹91,000 crore (~$11billion) fab in Dholera, Gujarat is being built with roughly 50% government cost support under the India Semiconductor Mission but the rest of the capital stack includes genuine project finance. In February 2026, the company secured ₹6,835 crore (~$735 million) in loans from five foreign banks HSBC, MUFG, DBS, First Abu Dhabi Bank, and ANZ structured as project debt repayable by 2031, with conditions requiring Tata to retain majority ownership. This is precisely the kind of instrument that infrastructure and project finance desks, not venture funds, are built to underwrite: long tenor, asset-backed, tied to a specific facility rather than a company’s equity story.

Ola Electric’s build-out of its EV gigafactory shows the same handoff happening sequentially within a single company. It started as a venture-backed startup, then in 2023 raised a debt-heavy $384 million round led by Temasek with the debt portion roughly $240 million bankrolled by State Bank of India. Separately, it raised $100 million in 10-year long-term project debt from Bank of Baroda specifically to fund Phase I of its Futurefactory manufacturing hub, which the company described at the time as the largest long-term debt financing agreement in the Indian EV industry. It later went public. In sequence, that’s venture equity, then debt-heavy growth capital, then dedicated project debt, then public markets four distinct capital instruments for four distinct stages of the same company’s life.

Sovereign-linked infrastructure capital is the layer that connects these dots at a system level. India’s National Investment and Infrastructure Fund (NIIF), roughly $4.9 Billion, the U.S. International Development Finance Corporation, and the Asian Development Bank, has already moved into deep-tech-adjacent manufacturing including a stake in EV maker Ather Energy through its India-Japan Fund. NIIF was built for roads, ports, and power; its entry into advanced manufacturing is an early signal of where a dedicated pool of long-duration, infrastructure-grade capital for deep tech could eventually sit.

Why This Matters More Than Raising More VC

None of this is an argument that India has enough deep-tech capital. It’s an argument that the composition of the stack matters more than its total size. A rupee of venture capital and a rupee of project finance are not interchangeable; they carry different expectations for return timing, different risk tolerances, and different exit mechanics. When venture capital is asked to do the job of infrastructure capital funding a fab or a gigafactory off a fund’s standard return clock the mismatch shows up exactly where the Series B/C funding gap in India’s deep-tech sector already appears.

Call this the Capital Stack Handoff: the next phase of India’s deep-tech ecosystem depends less on manufacturing more venture capital and more on building the connective tissue between venture capital and the infrastructure, project finance, and sovereign capital pools that actually finance physical scale. The RDI Scheme’s two-tier structure channelling government capital through AIFs, DFIs, and NBFCs rather than directly into startups is one attempt at institutionalising that connective tissue. The Tata Semiconductor loan syndicate and NIIF’s move into EV manufacturing are early, company-level instances of it happening organically. What India doesn’t yet have is a systematic, repeatable bridge that every promising deep-tech company can expect to cross once it graduates from prototype to plant.

Junior Research Analyst

Kartik Goel

Frequently Asked Questions

Q: Why can't venture capital alone fund a deep-tech company all the way to commercial scale?

A: Venture capital is built to underwrite technology and team risk in exchange for equity upside, typically within a 7–10 year fund life. Building a fab, gigafactory, or launch facility requires large, front-loaded, asset-backed capital with a different risk-return profile closer to infrastructure or project finance than a venture bet which is why the capital type needs to change as a company matures, not just the amount raised.

Q: What is project finance, and why is it relevant to deep tech?

A: Project finance is long-tenor debt secured against a specific physical asset or facility rather than a company's broader balance sheet or equity story. Tata Semiconductor Manufacturing's ₹6,835 crore loan from a syndicate of five foreign banks to help fund its Dholera fab is a live example of this instrument being used to finance deep-tech manufacturing infrastructure in India.

Q: How big is the gap between venture capital and infrastructure capital in India's semiconductor sector?

A: Semiconductor-focused VC funding was around $50 million in 2025, while government-approved project investment under the India Semiconductor Mission has reached roughly ₹1.65 lakh crore (about $19 billion) across 12–13 approved projects illustrating how much of the capital needed for deep tech's physical build-out sits outside the venture capital system entirely.

Q: What role can sovereign and infrastructure funds play in deep tech?

A: Vehicles like India's National Investment and Infrastructure Fund, which counts the Abu Dhabi Investment Authority, the U.S. DFC, and the Asian Development Bank among its backers, are structured for exactly the long-duration, large-ticket investments that deep-tech manufacturing requires. NIIF's existing stake in EV maker Ather Energy suggests these platforms could become a more deliberate financing layer for deep tech's capital-intensive scale-up stage.

Sources

1. Economic Times
2. Business World
3. Mint
4. Tech Crunch