What makes Quantum Physics so spooky? We see classical physics all around us. From walking on roads to falling apples, everything can be explained by one of the chapters from our physics textbooks. But what about transistors, GPS, lasers and MRI machines? That's where principles of quanutum physics start playing a major role, which the human mind cannot perceive easily.

As Indian X debates whether deep tech deserves our capital and conviction, perhaps we should remember what we're ultimately trying to build. An India that designs its own chips, builds its own aircraft engines, discovers life-saving medicines and pushes the frontiers of human knowledge. Consumer innovation has transformed millions of lives, no doubt about that, but, Deep tech can expand what our country is capable of achieving not only domestically but geopolitically. And somewhere today, a young Indian scientist is pursuing an idea that may take twenty years to bear fruit. He might fail a hundred times before succeeding or he may never succeed at all. But imagine a country where such ambitions never receive a chance. We have spent generations dreaming of an India that leads the world in science and technology, and now we stand a chance to make it happen. So, let's ensure that this ambition finds the support it deserves. As history will remember what we chose to build. So, let's make it worth remembering ! @awaisahmedna

She Was 14 When a Fighter Jet Inspired Her. Today, She's Building Materials for India's Aerospace Future! At 14, Samridhi Shoor encountered a machine that would shape her ambitions: the SR-71 Blackbird. The American reconnaissance aircraft could fly at more than three times the speed of sound. Its extraordinary performance fascinated her, particularly the engineering that allowed it to survive extreme temperatures. Years later, that fascination would lead her towards one of aerospace engineering's toughest challenges: developing materials that can survive where ordinary metals fail. In 2022, Samridhi and Varun Dev Shoor founded Aegion Aerospace in Sonipat, Haryana. Their mission was to develop high-performance alloys and coatings for aircraft engines, rockets, defence equipment and nuclear systems. Consider what happens inside a jet engine. As temperatures rise, metals gradually lose strength. Components face immense mechanical stress, oxidation and corrosion. A small material failure can have catastrophic consequences. Engineers therefore rely on specialised superalloys, often containing nickel or titanium, to keep these machines operating safely. But sourcing such materials can be difficult. Samridhi has described procurement lead times stretching six to twelve months, leaving manufacturers dependent on a concentrated international supply chain. Aegion began developing its own materials to address this challenge. Its portfolio includes nickel- and titanium-based superalloys, advanced ceramics, intermetallic materials and protective coatings. The company claims some of its materials can operate in environments approaching 1,150°C, while its specialised coatings aim to improve component durability. Its progress has attracted institutional attention. Aegion entered the European Space Agency's UK Business Incubation Centre programme for 2024–2026. It also secured investment led by Rebalance and reported a growing multi-crore order pipeline across aerospace, energy and critical infrastructure. An interesting milestone came through India's Ministry of Mines. A government committee approved ₹1.09 crore in proposed support for Aegion's project to manufacture specialised powders used in hard, wear-resistant industrial coatings. For India, the implications extend beyond aerospace. Domestic expertise in advanced metallurgy could strengthen supply chains for defence manufacturing, space propulsion, nuclear energy and industrial machinery. Yet producing these materials consistently, qualifying them for critical applications and scaling manufacturing will take years of patient engineering. Samridhi's childhood fascination began with an aircraft that pushed the limits of engineering. Today, she's working on the materials that could help future Indian machines push those limits further. Which critical technology should India prioritise developing domestically next?

Today's scientific fantasy could become tomorrow's reality! The scientists behind superconducting quantum circuits were exploring a fundamental question about physics. Decades later, their discoveries became central to quantum computing. Prof. Rajesh Gopakumar explains why the most important discoveries often begin without any practical application in mind.

Richard Feynman Didn't Want His Best Students Scoring 10/10 ! During his PhD at Caltech, Prof. Deepak Dhar worked as a teaching assistant under legendary physicist Richard Feynman. He initially graded answers as 0, 0.5 or 1. But Feynman encouraged him to use a continuous scale out of 10, with nobody receiving a perfect score. His believed that grades should distinguish different levels of understanding, while reminding even the brightest students that there is always room to improve.

When Nithin Nujum worked on construction projects, he saw how deeply the industry depended on cement. Every new road, building and pavement required enormous quantities of a material whose production came with a significant environmental cost. Meanwhile, Dr. K.S. Nanjunda Rao, a researcher at the Indian Institute of Science (IISc), had spent decades studying how construction materials could become more sustainable. Their worlds eventually came together through Novacret, a Bengaluru-based startup founded in 2024 alongside entrepreneur Vijay Yashwanth. Their ambition was fascinating: What if India could manufacture concrete without using conventional cement? The challenge was enormous. Cement production accounts for roughly 8% of global carbon emissions. As India builds more roads, homes and industrial infrastructure, demand for construction materials will continue growing. Novacret's solution draws on geopolymer chemistry. Instead of conventional Portland cement, its proprietary binder uses industrial by-products such as ground granulated blast furnace slag (GGBS), generated during steel manufacturing, and fly ash from thermal power plants. Waste from one industry becomes a raw material for another. And the numbers are promising. According to the company, its technology can reduce carbon emissions by around 60%, conserve 80% of water and lower costs by approximately 10%. Its concrete also reportedly achieves its target strength within three days, compared with the conventional 28-day benchmark used for concrete strength testing. For every square foot of paving blocks produced, Novacret estimates savings of approximately 2.04 kilograms of CO₂. These claims have already attracted attention beyond the laboratory. In November 2024, Karnataka minister Priyank Kharge unveiled Novacret's technology at the Bengaluru Tech Summit. The startup subsequently pursued pilot installations for footpaths and bus stops in Bengaluru, demonstrating applications for its cement-free paving materials. Its founders believe existing concrete manufacturers could adopt the technology with relatively minor equipment modifications, potentially accelerating commercial adoption. But construction is an unforgiving industry. Engineers need consistent strength, proven durability, regulatory acceptance and reliable supplies before changing materials used in critical infrastructure. For Novacret, scaling production while demonstrating long-term performance will be the defining challenge. India is preparing to build infrastructure on an extraordinary scale. Imagine if the next generation of Indian cities could be built using materials that consume industrial waste while conserving water and reducing emissions. Would you trust cement-free concrete in your own home?

An Indian Startup Wants to Build a Defence Dome Across Our Skies! In 2019, Kiran Raju Penumacha watched a drone attack on Saudi Arabia's Aramco oil facilities expose a frightening weakness in modern defence. Drones costing a fraction of traditional military equipment had helped disrupt one of the world's largest oil producers. For Kiran, who had spent years researching autonomous systems, the attack raised an uncomfortable question: Could India's critical infrastructure withstand something similar? His concerns deepened as drones began appearing along the Punjab border, carrying weapons and narcotics. Then, in 2021, drones struck the Jammu Air Force Station. The threat was getting closer to home. Kiran had studied at Carnegie Mellon University and spent years working on autonomous technologies. Drawing on that experience, he began building Indrajaal, a Hyderabad-based startup with an ambitious vision: an intelligent defence network capable of protecting entire regions. Its proposed coverage? Up to 4,000 square kilometres. At the centre sits SkyOS, an AI platform connecting radars, cameras and radio-frequency sensors to detect and assess suspicious drones. Depending on the threat, the system can deploy electronic jamming, interfere with navigation, attempt cyber takeover of compatible drones or activate physical interceptors. During Operation Sindoor in May 2025, Indrajaal reported deploying its technology at a strategic naval installation in western India. The company's ambitions have since translated into substantial government orders. In August 2026, Indrajaal and Sigma Advanced Systems announced approximately ₹155 crore in orders for Ranger, their mobile counter-drone vehicle, including ₹145 crore for border security and ₹10 crore for urban policing. Ranger can patrol while monitoring the skies, an important capability when hostile drones can cross borders at unpredictable locations. For India, with its extensive borders, coastlines, refineries and military installations, affordable counter-drone protection is becoming increasingly important. Kiran's journey began with a vulnerability exposed thousands of kilometres away. Today, his company is developing technology intended to prevent similar attacks on Indian soil. And that leaves us with a difficult question. As AI takes on greater responsibility for national defence, how much decision-making authority should we give to these machines?

10 Indian companies working to build high tech anti-drone systems: 1. Zen Technologies : AI-powered soft-kill + hard-kill system that can track 100+ drones and use interceptor drones. 2. Big Bang Boom Solutions : Vajra Sentinel with AI RF fingerprinting, AESA radar and automatic jamming. 3. Indrajaal : Distributed AI “defence dome” that protects regions, not just single sites, with cyber takeover and interceptors. 4. IG Defence : Man-portable RF jammer (T-SHUL BEAM) plus a private micro-missile (JWALA) for hard-kill. 5. Unmannd : Autonomous counter-drone interceptor drones that chase and neutralise threats. 6. Apollyon Dynamics : High-speed interceptor drones (Ahuti Mk II) built for defence. 7. DroneVerse : AI gunshot detection paired with autonomous drone response systems. 8. Data Patterns : Radar, electronic intelligence and jamming technology for counter-UAS. 9. Grene Robotics : Core AI and robotics layer behind Indrajaal’s autonomous anti-drone platform. 10. Paras Defence : Sensors, optics and electronic warfare components used in counter-drone systems. Most people still think anti-drone means a handheld jammer. But these companies are building the full stack: detection, AI classification, soft-kill and hard-kill.

What makes mathematics so powerful? Every law in nature seems to be mathematically consistent which makes it the primary language of physics. Why does it work? Perhaps nobody knows. But without its backing your theory is just a simple imagination.

In 2007, Dheemanth Nagaraj left Hewlett Packard in the United States and moved back to his home town of Bengaluru, because, he says, he wanted to "continue working on cutting edge technology and microprocessors." It was at HP that he had first glimpsed what Intel was building, and he joined Intel's Bengaluru design centre as a senior technical lead, one rank below a principal engineer. Eight years later, Intel needed a data-centre chip that was not more powerful but more efficient, and Nagaraj conceived and built it. The Xeon D used between 20 and 70 watts where a regular Xeon chip drew up to 200, and Facebook became one of its biggest users. In 2018 he became the first person from Intel's India Design Centre, in its twenty-year history, to be named an Intel Fellow, a title held by only about 80 people in the company's 50 years. He later became a Senior Fellow at AMD, and in 2024 he co-founded Agrani Labs in Bengaluru with Ashok Jagannathan, Srikanth Nimmagadda and Rajesh Vivekanandham, all former Intel and AMD engineers, a team the company says has more than 100 years of combined experience. What they are building is a high-performance GPU for AI in data centres, together with its own compilers, libraries, system software and AI frameworks, an approach the company says is meant to lower the hurdles of adopting a new platform. In January 2026 it came out of stealth with an $8 million seed round led by Peak XV Partners, and Vinod Dham, widely known as the "Father of the Pentium", joined as a founding advisor. The company says it has already built early versions of its hardware and software stack. Peak XV's Ashish Agrawal said at the time that the firm was backing a team that "aspire to build one of the world's leading fabless semiconductor companies, from India." In October, the Economic Times reported that Agrani is in talks to raise ₹800 to 850 crore from Samsung, 360 ONE and Peak XV at a post-money valuation of about ₹2,400 to 2,500 crore, which would make it one of the largest early-stage raises by an Indian semiconductor company. The round has not been confirmed as closed. The first chip he led at Intel's Bengaluru centre went into servers for banks and stock exchanges, and the one he is building now is a GPU for AI data centres.

Behind every car, aircraft and precision weapon lies a technology few people know about: CNC. Japan mastered it. China scaled it. Now India has an opportunity to build its own capabilities. Discover why CNC matters to India's manufacturing future.

India is one of the biggest players in the SOLAR market ! Can we translate this success to battery manufacturing too? We do not lack the talent needed for a manufacturing revolution, what we lack is the right direction to transform India into a manufacturing powerhouse.

India missed the manufacturing bus. Can it afford to miss the DeepTech revolution too? From China's factories to Musk's Starlink, India's technological dependence raises an uncomfortable question: What does Atmanirbharta mean? And how do we catch up?

He spent 13 years at ISRO working on the cryogenic engines behind Chandrayaan and Gaganyaan. Then he left to build the one engine ISRO had never attempted, and that only one company on Earth has ever flown. His name is Devakumar Thammisetty. After more than a decade inside India's space programme, he went to EPFL in Switzerland to study a single question: how do you make a rocket engine that can fly again and again? The answer he came back with is called full-flow staged combustion. It burns methane with liquid oxygen and routes every drop of both propellants through the turbines before they reach the chamber, which makes the engine more efficient, gentler on its own components, and far better suited to being reused. It is also brutally difficult. Only a handful of these engines have ever been tested anywhere in the world. Only SpaceX's Raptor has flown one. Astrobase calls it the hardest rocket engine cycle ever built. The man funding it made his money somewhere unexpected. Neeraj Khandelwal is an IIT Bombay graduate who spent the last decade co-founding CoinDCX and scaling it past 15 million users and a $2.1 billion valuation. He is Astrobase's primary investor. "Building India's first FFSC rocket engine means building the factory that can build the engine," he has said. "No shortcuts." They founded Astrobase in Bengaluru in 2024, along with two more former ISRO scientists, Pawan Kumar and Prashant M. A sub-scale engine hot fire in September 2025. High-speed turbopump tests in January 2026. The full engine design and manufacturing milestone in August 2026. A 21.5-acre propulsion test facility in Anantapur. In June 2026, IN-SPACe chose them from 43 applicants for its Technology Adoption Fund. SpaceX and Blue Origin each spent billions and most of a decade getting their staged combustion engines to work. Astrobase has raised around $10 million. The full engine hot fire is next. Four countries have ever tested an engine like this and India is not one of them yet.