TDB backs QNu Labs with ₹150 crore to build India's quantum secure network backbone
Synopsis
Key Takeaways
The Technology Development Board (TDB) has agreed to provide ₹150 crore in financial support to Bengaluru-based quantum technology firm QNu Labs to develop an indigenous backbone for India's Quantum Secure and Sensing Networks, according to an official statement released on Friday, 16 October 2026. The funding, structured as Optionally Convertible Debt (OCD), forms part of a larger ₹300 crore programme aimed at advancing India's sovereign quantum security capabilities.
What the Programme Entails
The project is designed to advance a portfolio of technologies from Technology Readiness Levels (TRL) 4–5 all the way to TRL-9 — meaning full operational readiness. At its core, the programme aims to deliver a sovereign quantum-security and sensing technology stack covering four critical domains: device identity, location integrity, network security, and time integrity. The Ministry of Science and Technology, under which TDB operates, described this integrated framework as a 'unified foundation for sovereign security and sensing infrastructure.'
Why Quantum Security Is Now a National Priority
Conventional security mechanisms are increasingly vulnerable to evolving cyber threats, and quantum technologies offer fundamentally new approaches to hardening critical infrastructure. Securing the authenticity of devices, the integrity of navigation systems, the reliability of time synchronisation, and the confidentiality of communications has emerged as a critical technological priority for India, the ministry's statement noted. The programme extends its reach into chip-based and satellite-based quantum key distribution (QKD), quantum sensing, and artificial intelligence — signalling an ambition well beyond traditional cybersecurity.
TDB Secretary on India's Technological Self-Reliance
Rajesh Kumar Pathak, Secretary of the Technology Development Board, underscored the strategic rationale behind the investment. 'Quantum technologies are opening new possibilities for addressing complex challenges in cybersecurity, communications, navigation and critical infrastructure. Building indigenous capabilities across these interconnected domains is important for strengthening India's technological self-reliance and long-term security,' he said. The funding is being disbursed through TDB's Research, Development and Innovation (RDI) Fund, which supports deep-tech ventures with commercial potential.
QNu Labs and the Road to TRL-9
QNu Labs, headquartered in Bengaluru, is among India's most prominent quantum-technology startups, with prior work in quantum random number generators and quantum key distribution systems. The TDB partnership will allow the firm to accelerate its R&D roadmap, building trust into infrastructure 'from the hardware upwards,' according to the ministry statement. The eventual output is intended to be deployable across critical sectors including defence, telecommunications, and financial services.
What Comes Next
With the agreement now formalised, QNu Labs is expected to mobilise the remaining ₹150 crore of the total project cost from other sources as the programme scales toward TRL-9 milestones. The initiative aligns with the Centre's broader National Quantum Mission, launched in 2023 with an outlay of ₹6,003 crore over eight years to place India among the world's top quantum-capable nations. Progress on device-level and satellite-based QKD will be closely watched as benchmarks of the programme's success.