Technolgies useful for Indian problems

[sanman]

Bio-Resin could be a cheaper effective non-Petroleum-based substitute for road tar/asphalt:

[sanman]

Geothermal heat pump

[Amber G.]

Lenek Technologies Pvt. Ltd. in collaboration with IIT Kanpur, has developed an indigenous handheld X-ray device for tuberculosis screening. This affordable, AI-enabled, battery-operated machine, funded by ICMR, will support India's goal of eliminating TB by 2025.

[Cyrano]

Simple modular flood barriers

https://youtube.com/shorts/qYcVT3BAQJA

[RCase]

https://www.youtube.com/watch?v=PesYiwR_RQQ

Interesting discussion with Prof Satya Chakarvarthy of IIT-M. Very heartening to know that strides made in aerospace.

[Amber G.]

Meta-RayBan Glasses Coming to India: Will AI and Optics Revolutionize Smart Eyewear

Meta has announced that Ray-Ban Meta glasses will soon launch in India, along with Mexico and the UAE. These next-gen smart glasses, powered by Meta AI, offer hands-free access to real-time information, live translation, social media messaging, music streaming, and even visual AI interaction—blending technology with classic Ray-Ban style.

Building on the success of Ray-Ban Stories, the new glasses introduce features like expanded music access, Instagram messaging, and “live AI” that can interact with your surroundings. New stylish frames like the Skyler series also make their debut.

As part of the launch, the glasses will be showcased to Indian government officials, (including perhaps Prime Minister Modi), at the upcoming WAVES conference, signaling a major push to introduce wearable AI technology in India.

[Vayutuvan]

What Indian problem this tech addresses?

[Amber G.]

^^^Assuming the question is genuine and not just trolling—India has an estimated 4.95 million blind individuals and 35 million people with visual impairment. For them, AI-powered, hands-free technology like this could be truly transformative, which is why there's *significant* interest from various stakeholders, including the Indian government.
(A blind person can use AI-powered Meta glasses for real-time audio descriptions of their surroundings, text reading, object recognition, and navigation assistance—all hands-free... I have tried it and have see blind people use it.. extremely impressive)

[ernest]

Thanks to the efforts by a small group of people, India has moved quickly in adopting assistive technologies for the blind. India was the
first nation to ratify Marrakesh Treaty. A ton of books were made available to the visually challenged in the past decades. Hope smart-eyeglasses tech is also adopted rapidly.

[Amber G.]

Thanks to the efforts by a small group of people, India has moved quickly in adopting assistive technologies for the blind. India was the
first nation to ratify Marrakesh Treaty. A ton of books were made available to the visually challenged in the past decades. Hope smart-eyeglasses tech is also adopted rapidly.

Absolutely—and it’s worth emphasizing that today, Prime Minister Modi himself saw a live demonstration of the Meta AI glasses, showing keen personal interest in the technology, even amidst pressing issues like the current Pahalgam situation. That kind of attention at the highest level speaks volumes. I’m deeply involved in this space as well and can say firsthand that Meta’s leadership is pushing this initiative with real commitment .. we're hopeful that smart eyewear for the visually challenged will see rapid adoption too.

Of course, alongside cutting-edge technology, successful adoption also depends on close cooperation with the government and key institutions. There are important challenges to address—like data privacy, safe usage standards, and equitable access—especially when AI is interacting with sensitive visual and spatial information in real time. With proactive policy support and thoughtful regulation, India can set a global example in how to responsibly scale assistive AI for social impact.

(Added later: Modi's attending the Wavedd is reported in Mainstream media - He did make time to see AI glasses demonstration): Modi at Waves Summit 2025 highlights: We need to save young generations from tendencies against humanism, says PM

[Vayutuvan]

^^^Assuming the question is genuine and not just trolling—

Not trolling. The connection was not obvious (to me at least).

[Amber G.]

Meta to start selling its Ray-Ban smart glasses in India on May 19

Meta said on Tuesday its Ray-Ban Meta smart glasses would be available for sale in India starting May 19 at a starting price of ₹29,990 (about $353).

The smart glasses are currently available for preorder on Ray-Ban’s site and will be stocked in Ray-Ban stores at launch.

Meta said the smart glasses launching in India will support Meta AI, which can answer questions about what’s in front of you, translate both audio and video live, send messages via your phone, make calls for you, and more.

The smart glasses currently support live translation for English, French, Italian, and Spanish, even when users are offline. Notably, Meta hasn’t added support for Indian languages yet.

Meta has said it would enable the glasses to connect and play music through apps like Spotify, Amazon Music, Shazam, and Apple Music in India.

The company has so far sold around 2 million pairs of the glasses since they launched in 2023.

The live translation (in Indian languages will be coming soon. As it is, it can be used by Blind People for knowing what's around them, look (and read) paper/sign/anything, etc..
Next step ought to be make it available for masses

[Amber G.]

^^^ I am glad that above technology (Meta glasses with AI) is becoming more popular, and progressing well. It seems India is looking it at with enthusiasm.

Sharingn one of many articles I am seeing in popular media :
(Very much impressed - in US Ray-ban /Meta AI is available around $300 - (not that much more than just the ordinary Ray-bans)

How the low-vision community embraced AI smart glasses

[Amber G.]

^^^ Meta’s Ray-Ban smart glasses are now officially available in both the US and India (In India with Hindi).

The new “Ray-Ban Display” edition, featuring an in-lens display and the Neural Band for gesture control, has launched in the US, while India, AFAIK, currently gets only the earlier audio + camera version.

I tried them recently — and they’re really impressive. The Display + Neural Band combo feels futuristic yet natural, and the live translation feature works surprisingly well.

[A_Gupta]

The Asahi Shimbun reports:
Study: Bacterium enriches mine drainage copper to ore level
https://www.asahi.com/ajw/articles/16318140

A bacterium contained in drainage from old mines can enrich copper to the level of copper ore, a research team said.

The discovery could lead to a more efficient system of collecting copper from scrapped electric appliances and other goods at a time when the metal is in high demand but limited in supply.

The study started after Satoshi Mitsunobu, 45, a professor at Ehime University’s Graduate School of Agriculture specializing in environmental microbiology, found a high concentration of copper in drainage sediment at an old copper mine in Ehime Prefecture about two years ago.

A detailed examination showed a bacterium that lived on energy produced when iron is oxidized. The iron-oxidizing bacterium created iron rust, which absorbed copper in the drainage water, producing the sediment.

Normally, copper accounts for roughly 0.7 percent of the weight of mined copper ore.

But the deposits contained up to 2 percent, according to the researchers.

The team will work on establishing a system to use the newly found bacterium to collect copper from smartphones and other scrap sources more efficiently than current technologies.

[Amber G.]

^^^ Meta’s Ray-Ban smart glasses are now officially available in both the US and India (In India with Hindi).

The new “Ray-Ban Display” edition, featuring an in-lens display and the Neural Band for gesture control, has launched in the US, while India, AFAIK, currently gets only the earlier audio + camera version.

I tried them recently — and they’re really impressive. The Display + Neural Band combo feels futuristic yet natural, and the live translation feature works surprisingly well.

Update on this from India AI Summit: (xpost)

This is about a milestone for Inclusive Innovation: Meta AI at Bharat Mandapam
I am proud to share this clip from the India AI Impact Summit 2026. This is from PM’s Instagram. It captures a powerful moment where Pranav, a young man who is visually impaired, uses the Meta AI glasses to identify the colors of socks for PM Narendra Modi ji.

Watching the technology provide real-time independence for the Divyang is a moving testament to what "AI for All" really looks like - demonstrating how these tools can bridge the accessibility gap.

As Secretary DST highlighted at the summit, the goal is democratization—ensuring scientific progress is equitable for everyone.
"Welfare for All, Happiness for All" (सर्वजन हिताय, सर्वजन सुखाय)

[Amber G.]

From MIT News: Can be used everywhere:

MIT researchers are developing a non-invasive, wearable, or portable device that uses near-infrared light and Raman spectroscopy to measure blood glucose levels without finger pricks. The technology, which is currently in clinical testing, analyzes how light scatters through skin tissue to detect glucose molecules with accuracy comparable to commercial glucometers.

Key Features of the MIT Technology:

Method: The scanner shines near-infrared light onto the skin, using Raman spectroscopy to identify the chemical composition of tissues.
Performance: Early studies show accuracy levels comparable to, or better than, traditional invasive glucose monitors.
Convenience: The current prototype has been reduced to the size of an iPhone, with future goals to make it as small as a smartwatch.
Process: A 30-second scan can provide accurate readings, which researchers hope to develop into a continuous, real-time monitoring system.
Status: The team is testing on healthy and prediabetic volunteers, with plans to expand studies to people with diabetes.
Non-invasive: No needles or blood samples are required.
Wearable Potential: It aims to replace painful daily finger pricks.
Continuous Monitoring: Aims to provide constant, real-time updates on glucose levels.
Improved Management: Could lead to better control of diabetes through constant monitoring without skin irritation or discomfort.

[Vayutuvan]

Probably this can be extended to become an artificial pancreas later on by coupling with a small Insulin reservoir and a pump.

[Manish_Sharma]

https://x.com/raghavwadhwa/status/20562 ... 82889?s=20

India sold nearly 14 million ACs last year

But the real bottleneck was not demand.

It was the compressor inside the AC.

India’s AC compressor demand is around 15 million units annually, while domestic capacity is only 7 to 8 million units.

Refrigerator compressors: ~14.5 million units needed. Domestic capacity ~8.5-9 million.

That means the heart of India’s cooling industry is still heavily import dependent.

This is the part of the cooling story most investors are under-analysing.

So nearly half the AC compressors and 40% of fridge compressors are still imported. Mostly from China and Thailand.

The government’s response is clear.

DPIIT’s order links imports of compressors below 2 TR to FY25 import volumes.

This category drives more than 85% of household AC and refrigerator sales.

AC compressor imports are capped at 30% of FY25 volumes.

Refrigerator compressor imports are capped at 40% of FY25 volumes.

The relaxation has been extended till March 2027 to avoid an immediate supply shock.

Companies that built local capacity early will eat. Companies still dependent on Chinese vendors will pay more, ship less and lose share in the summer that matters most.

Now look at who is building or localising compressor capacity in India:
1. LG Electronics: Greater Noida line running since 2023 (1 million units annual). New ₹5,001 Cr Sri City plant under construction, 2 million compressors a year from end-2026.
2. Mitsubishi Electric: ₹2,100 Cr Chennai plant just went live in Feb 2026. 650,000 compressors a year designed in.
3. Daikin India: JV with Taiwan's Rechi Precision announced Dec 2024 for rotary compressors in Andhra Pradesh.
4. PG Electroplast: ₹350 Cr compressor plant near Pune, 5 million units annual capacity. Technical tie-up with China's Highly. Now slated for FY27 commissioning.
5. Kirloskar Pneumatic: Board-approved PLI application in Round 4 to enter commercial AC market. New facility planned within 18 months. The pivot from industrial gas compressors to AC and refrigeration compressors is fresh.

So, here's the gap most people are missing.
The visible trade is the AC brand.

The hidden trade is everything that goes inside the AC.

And right now, two timelines are colliding.

Demand timeline:
India’s AC market is already around 14 million units.

Annual AC compressor demand is around 15 million units.

By 2030, industry demand could move towards 28 to 30 million units.

AC penetration is still only around 10% of Indian households, compared with nearly two-thirds in China.

Rising temperatures, heatwaves, urbanisation, higher disposable income and replacement demand are all pushing the cooling cycle higher.

The GST reduction on ACs from 28% to 18% can further improve affordability and support demand over time.

Supply timeline:
Local hermetic compressor capacity is expected to ramp meaningfully only between end-2026 and 2028.

That creates a 2-to-3-year window where domestic supply may not fully match demand, while imports remain capped.

In that window, the value chain reorganises into clear baskets.
Finished AC brands (the visible end of the chain)
1. Voltas: market leader (~19% share, 2.5 mn RAC units in FY25). Heavy compressors import dependence. Margin pressure if sourcing tightens.
2. Blue Star: balanced RAC plus commercial. Selected for PLI capacity upgrade.
3. Hitachi (now under Bosch Home Comfort): 900,000 RAC capacity at Kadi, Gujarat. Bosch acquired majority stake Aug 2025, potential to scale commercial.

RAC OEM/ODM (the contract manufacturers)
1. Amber Enterprises: 29% RAC OEM/ODM share. Most components in-house. Compressor is the one part it still buys. Flagged in its own analyst commentary as the biggest peak-season risk.
2. PG Electroplast: 24% RAC market share. The only listed ODM building its own compressor plant.
3. EPACK Durable: ~24% RAC share, three vertically integrated plants. Supplies Voltas, Blue Star, Daikin, Havells, Haier. No compressor JV yet.

Hermetic compressor builders (the new pool)
LG, Mitsubishi, Daikin, PGEL, Kirloskar Pneumatic. Plus existing players Tecumseh India (Ballabgarh, Hyderabad) and Highly's tie-ups.

Component plays (the picks and shovels)
1. KRN Heat Exchanger: 90%+ utilisation, MoU for ₹1,000 Cr facility in Rajasthan, PLI incentive of ₹141.72 Cr approved. Supplies Daikin, Blue Star, Voltas, Carrier, Kirloskar.
2. Amber Enterprises: also a heat exchanger, motor and copper tube player beyond pure RAC.
3. Voltas Components, Hindalco, Adani Copper Tubes: copper tube and aluminium PLI participants.

Industrial compressors (separate basket, not AC hermetic)
1. Elgi Equipments, Ingersoll Rand India: industrial screw and reciprocating air compressors for textiles, manufacturing, auto. They ride the broader industrial capex cycle, not the AC import cap. Important to keep them in their own bucket so the thesis stays clean.
2. Kirloskar Pneumatic itself sits in two buckets now, legacy industrial and gas compressors, new commercial AC compressors under PLI.

The next bull case in India's AC story is not who sells the most units. It is who controls the components that go inside every unit.

That is where the durable profit pool sits.

Disclaimer: For educational purposes only. Not a buy or sell recommendation.

[Manish_Sharma]

https://x.com/Normal_2610/status/205741 ... 72443?s=20

Import Import import - Assemble in India - Mental Model

CATL spent $2.58 billion on battery R&D in 2024, Reliance spent $437 million on R&D for its entire group across refining, telecom, chemicals and energy combined.

Every Indian conglomerate that promised cell manufacturing between 2021 and 2023 has settled into assembling Chinese cells into Indian containers by 2026.

They copied the Korean model of licensing foreign technology but skipped the part where Korea spent $2.1 billion a year on R&D to make the licensed chemistry their own.

India assembled the box, China kept the money.

India two biggest battery makers, Amara Raja and Exide, hold seven patents combined, CATL holds 43,000, LG holds 70,000, This is not a funding problem or a policy problem.

This is a science problem, Indian conglomerates treated batteries as a procurement exercise and are now finding out that China will not sell the answer.

Beijing October 2025 export controls shut down the licensing route entirely, You cannot buy your way to sovereignty when the seller decides to stop selling.

Reliance bought Faradion for $130 million, Lithium Werks for $61 million, took a $50 million stake in Ambri, Four years later, Faradion is still a research lab in Sheffield.

Lithium Werks makes 200 MWh a year in its Chinese plant, Ambri filed for bankruptcy after Reliance refused an $8 million bridge round, Three acquisitions, zero Indian cells.

The company that built Jio from scratch could not build a single battery cell because Jio was a bet on scale, Batteries need a bet on science, That bet has not been placed.

This is not just Reliance, Exide makes cells under a SVOLT license from China, Amara Raja runs on Gotion technology from China.

Tata Agratas runs on AESC technology owned by China's Envision, Adani's chairman visited CATL headquarters and toured their production line.

India PLI scheme promised 50 GWh of domestic cell capacity by 2025, The delivered total as of October 2025 was 1.4 GWh, all from Ola Electric, Every other major company is still importing.

Exide licensed SVOLT from China, Amara Raja licensed Gotion from China, Tata Agratas sold a 12% stake to AESC, a company owned by China Envision Group.

Cell manufacturing captures 65 to 70% of a battery value, What India calls its battery industry is mostly putting Chinese cells into Indian boxes.

Ola Electric is the only Indian company shipping vehicles with cells it made itself.

Its gigafactory runs at 2.5 GWh and is scaling to 6 GWh, with two formats now, the 4680 NMC already in thousands of scooters and a new 46100 LFP entering products next quarter.

The gap with Reliance is not money, Reliance has far more of it. Ola chose to build process knowledge inside a real factory while Reliance spent five years trying to license it from abroad.

[Manish_Sharma]

https://x.com/jcrajan00/status/2058489255958360375?s=20
Everyone wants India to be the next China in manufacturing. I think that framing is already wrong.

China built scale through suppressed wages and environmental arbitrage. India can't do that — and shouldn't try. The play is owning the part of the supply chain nobody wants to touch: specialty chemicals, refining bottlenecks, the ugly middle.(TYPE OF Technolgies useful for Indian problems)

Being the assembly floor is a race to the bottom. Being the chokepoint is leverage.

[Manish_Sharma]

Thread comparing how far we are behind china in Battery tech:
https://x.com/SwarajyaMag/status/205926 ... 55288?s=20

.........India's two largest battery companies hold 7 patents between them

CATL (China's battery giant) holds 50,000

You can build a factory but you cannot buy 50,000-patents-worth of knowledge from the shelf..........

[V_Raman]

I posted a make in india wishlist when NaMo came to power in 2014 - I am not able to find it now

AC manufacuring was on that list - but here we are still dependent on imports

Imagine if 80% of Indian households have AC - it is a massive domestic industry requiring 50M compressors a year!