India's Indigenous Quantum Software Stack

Quantum Power.
From Bharat.
For the World.

RSL Quantum is a deep tech startup developing India's quantum software backbone. Incubated at FITT, IIT Delhi. Founded by an IIT Delhi Professor. Built on intellectual property from the INTRINSIC Lab at the Centre for SeNSE.

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About

India's first full stack quantum software platform, built where the research lives.

We translate work from the lab bench at IIT Delhi into a quantum software stack the country can rely on. That stack is indigenous, patent backed, and ready to scale with the National Quantum Mission of the Government of India.

We do not see quantum as a single product. We see it as a layer that joins compute, intelligence, sensing, materials, and applications. The five pillars below describe what we build. The sectors below describe where it lands.

What we build

Five pillars. One stack.

Quantum Compute

Software that runs on today's classical hardware and is ready for tomorrow's quantum machines, without rewriting your code.

Quantum Intelligence

Tools that bring quantum methods into machine learning workflows, with the familiarity of the frameworks teams already use.

Quantum Sensing

A simulation layer for the next generation of quantum sensors, from defence grade timing to space grade navigation.

Quantum Materials

Computational discovery pipelines for the materials that will power Indian quantum hardware in the coming decade.

Quantum Applications

Cross domain quantum methods for biology, finance, energy, logistics, and any sector where computation is the bottleneck.

Why now

The next decade of computing will be defined by who can build the software that makes quantum useful. The National Quantum Mission of the Government of India has set that decade in motion. RSL Quantum exists to make sure the software backbone is built in India, by Indian researchers, for Bharat and for the world.

Where it lands

Defence, space, industry, academia.

Defence

Mission ready simulation for DRDO and partner laboratories.

Space

Trajectory, sensor, and materials modelling for ISRO and the new space industry.

Industry

Pharma, energy, finance, and manufacturing pilots ready for production.

Academia

Joint research programmes with IITs, IISc, and global universities.

Recognition

Backed by an institutional foundation.

RSL Quantum stands on a foundation of IIT Delhi research, FITT incubation, and alignment with national policy. The dots below mark the milestones.

2026

Incorporated

RSL Quantum Private Limited, CIN U62010DL2026PTC466369. Registered office at FITT, IIT Delhi.
2026

FITT Incubation

Approved by the 118th TSSC of FITT, IIT Delhi.
2026

IP Foundation

Six patents filed at IIT Delhi from the INTRINSIC Lab at the Centre for SeNSE.
Now

NQM Alignment

Aligned with the National Quantum Mission of the Government of India.

Prof. Santhosh Sivasubramani

Director and Founder, RSL Quantum

Director, INTRINSIC Lab, Centre for SeNSE, IIT Delhi

Founder

Where the research becomes a company.

Prof. Santhosh Sivasubramani directs the INTRINSIC Lab at the Centre for SeNSE, IIT Delhi, where his research on rebooting computing and quantum systems has produced the intellectual property at the foundation of RSL Quantum.

He founded RSL Quantum to translate that work from the lab bench into India's quantum software backbone. Built for Bharat. Engineered for the world.

Contact

Tell us what you are working on.

For demos, partnerships, investor enquiries, research collaborations, or press, write to us using the form. For anything else, the chat assistant at the bottom right is the fastest route.