Sunday, May 03, 2026
When machine starts learning
Saturday, April 25, 2026
The Carbide Man
The year was 1868. Delhi, a city steeped in history and tradition, was slowly stirring with the whispers of modernity. Madanlal, a young man of keen intellect and even keener ambition, found himself in the humble profession of a water carrier, ferrying earthen pots from the Yamuna to the parched homes of Delhi's residents. It was during one such journey, the rhythmic slosh of water against clay a familiar lullaby, that he overheard a conversation that would forever alter the course of his life.
Two British officers, resplendent in their uniforms, were discussing the feasibility of lighting Delhi's streets with gas lamps. "Imagine, Lieutenant," one exclaimed, "no more stumbling in the dark! A city bathed in a gentle glow, even after sunset."
Madanlal's heart quickened. Gas lamps! He knew, from snippets of conversation gleaned from the bazaar and the occasional English newspaper he'd managed to get his hands on, that these marvels of engineering required "carbide" to produce the gas. Delhi, in the late 19th century, offered precious few opportunities for a bright, unprivileged mind like his. This, he realized, was his moment.
That very evening, after his last delivery, Madanlal sought out his British contact, Mr. Davies, a kindly, if somewhat aloof, administrator whom Madanlal regularly supplied with fresh Yamuna water.
"Good evening, Mr. Davies," Madanlal began, his voice a careful blend of deference and earnestness. "I heard a most intriguing discussion today about lighting our Delhi streets with gas."
Davies, adjusting his spectacles, looked up from his ledger. "Indeed, Madanlal. A grand undertaking, if the finances permit. Why do you ask?"
"Sir, I have been thinking," Madanlal continued, choosing his words carefully, "these gas lamps, they require a substance called carbide, do they not?"
Davies raised an eyebrow, a flicker of surprise in his eyes. "They do. Calcium carbide, to be precise. A rather complex chemical compound, not easily produced, and certainly not found in abundance here."
"Perhaps," Madanlal ventured, "I could be of assistance in its procurement?"
Davies chuckled. "My dear Madanlal, a water carrier dabbling in chemical supply? A rather ambitious leap, wouldn't you say?"
"Ambition, sir, is often the mother of invention," Madanlal replied, a slight smile touching his lips. "I have a mind for such things, and I am willing to learn."
Davies, intrigued by the young man's audacity, decided to humor him. "Very well, Madanlal. Show me what you can do. The authorities are indeed exploring options, but local supply for such a specialized material seems a distant dream."
Madanlal, emboldened, immediately set off for Meerut. He knew a chemistry professor there, an eccentric but brilliant man named Professor Shankar, whom he'd met years ago during a brief stint working for a spice merchant.
"Professor Shankar!" Madanlal exclaimed, bursting into the professor's cluttered laboratory, a place filled with bubbling flasks and arcane diagrams. "I need your help with calcium carbide!"
Professor Shankar, a wisp of grey hair perpetually escaping his turban, peered at Madanlal over his spectacles. "Calcium carbide, you say? A fascinating compound. Used for acetylene gas, yes. What brings this sudden interest, my young friend?"
Madanlal quickly explained his ambitious plan. Professor Shankar, initially skeptical, became increasingly animated as Madanlal spoke. The idea of contributing to Delhi's modernization, even in a small way, appealed to his scientific patriotism.
"The production process, Madanlal," Professor Shankar explained, gesticulating wildly, "involves heating lime and coke in a furnace. A high-temperature reaction, mind you. Not something one can whip up in a backyard shed."
Madanlal's face fell slightly. "So, it is impossible for me to produce it here?"
"Locally, with our current resources, yes, practically impossible for large-scale production," Professor Shankar conceded. "However," he added, a glint in his eye, "I do know of a small, experimental setup in a village near Agra, run by a retired British chemist. He was attempting to synthesize various compounds. He might have the rudimentary equipment, or at least the knowledge, for smaller batches."
Armed with this new lead, Madanlal raced back to Delhi and then onwards to Agra. He found the retired chemist, Mr. Thompson, a cantankerous but ultimately helpful individual, who, after much persuasion and a promise of a share in the profits, agreed to show Madanlal the basics of carbide production.
"It's dangerous work, lad," Thompson grumbled, demonstrating the makeshift furnace. "The heat, the fumes... and acetylene gas itself is highly flammable. Not for the faint of heart."
Madanlal, however, was undeterred. He spent weeks learning the intricacies, the precise ratios of lime and coke, the delicate balance of temperature. He started with small, experimental batches, the pungent smell of acetylene a constant companion. He meticulously documented every step, every success, and every minor explosion.
Back in Delhi, Mr. Davies, though initially amused by Madanlal's persistence, had almost forgotten about him. Then, one crisp morning, Madanlal arrived at Davies' office, not with a pot of water, but with a small, heavy, greyish lump.
"Mr. Davies," Madanlal announced, his chest swelling with pride, "I present to you... calcium carbide."
Davies picked up the lump, his expression a mixture of disbelief and genuine awe. "You... you actually produced it?"
"With the invaluable guidance of Professor Shankar and Mr. Thompson, sir," Madanlal clarified. "And I believe I can establish a regular, albeit modest, supply."
"Modest or not, Madanlal, this is quite remarkable!" Davies exclaimed. He immediately arranged a demonstration. In the flickering light of a gas lamp fueled by Madanlal's carbide, the British authorities were impressed.
The initial supply chain was rudimentary. Madanlal would travel to Agra, oversee the production of small batches of carbide, and then personally transport it back to Delhi. He employed a few trusted porters, teaching them the importance of careful handling due to the carbide's volatile nature when exposed to moisture. The first few gas lamps that flickered to life on the streets of Delhi were a testament to his tenacity.
The conversations around Delhi changed. Instead of just discussing the cost of oil for traditional lamps, people marveled at the steady, bright glow of the gaslights. Madanlal, once a humble water carrier, was now "Madanlal, the Carbide Man," a crucial cog in Delhi's burgeoning modernity.
He learned to negotiate, to manage logistics, and to expand his network. He faced challenges – securing consistent raw materials, dealing with occasional accidents, and navigating the bureaucratic labyrinth of the British administration. But with each challenge overcome, his resolve strengthened.
The gas lamps, initially few and far between, slowly began to proliferate, casting their inviting glow on Chandni Chowk, illuminating the intricate carvings of Jama Masjid, and transforming the nocturnal landscape of Delhi. Madanlal, watching the city awaken to a new kind of light, knew that his journey had just begun. He was no longer just a supplier; he was an enabler, a quiet revolutionary in the grand story of Delhi's progress.
Wednesday, April 22, 2026
The Boy,the Robot and the Mother
Friday, April 17, 2026
Megawatts, masterpieces, and a gunslinger Chief Engineer—one unforgettable road trip.
Mr. Dharangdharia, the Chief Engineer of GEB at Wanakbori during 1987–88, was a man who could make boilers tremble and engineers behave like well-disciplined schoolboys. A tough exterior, clipped words, and a reputation that travelled faster than official memos—naturally, everyone kept a safe distance. Everyone except me.
For reasons best known to him (and perhaps my persistence in planning), he began relying on me for the 5th and 6th units of 210 MW each. That trust became my lever. While others hesitated, I quietly used his authority—like a borrowed sword—to ensure State Board engineers delivered enabling facilities on time. The result? Milestones that today would still invite applause: full load within 24 hours of first synchronisation, with all auto-loops, HP heaters—everything behaving like a well-rehearsed orchestra. No jugaad, pure performance.
But Dharangdharia was not just a taskmaster. Beneath that कठोर आवरण was a man of surprising warmth. One day, he announced, “Roy, I am going to Sikka Thermal. Car is going. You and Madhuri are coming.” That was less an invitation and more a command performance.
The Road Trip Begins
We set off—about 130 km—with him occupying the front seat, legs stretched like a Western gunslinger, occasionally turning back to talk.
At one point he said in a gruff, half-chewed accent: “Roy… you see… in life… you must shoot first… then talk.”
I burst out laughing. He was clearly channeling .
I replied, “But sir, in project management, if you shoot first, audit will shoot back.”
He chuckled, “Then you better be Clint Eastwood!”
The Ahmedabad Surprise
Our first halt was Ahmedabad, at the residence of a certain Lalbhai. The ladies disappeared inside, leaving Dharangdharia and me in the drawing room.
The moment I entered, I felt something unusual—cool, controlled air. In 1988, a fully air-conditioned drawing room itself was a statement. But the real shock was yet to come.
Dharangdharia leaned back and said dramatically, “Roy… get up… and look properly.”
I obeyed.
What I saw made me forget my engineering calculations. The walls were adorned with original works—not reproductions—of masters like , , … and then, almost unreal, European legends—, , .
I must have looked like a villager seeing electricity for the first time.
Lalbhai smiled and explained, “This room is air-conditioned 24 hours—for them, not for us.”
At that moment, I realised something profound: these paintings were not decoration; they were living heritage. Each canvas carried not just colour, but centuries of thought, rebellion, and human emotion. In engineering we measure megawatts—here, value was measured in imagination.
Mentally, of course, I was already converting each painting into crores of rupees!
Lunch with Royal Cows
Next halt—a roadside resort designed like a rustic village. We had a typical Gujarati meal—rotla, dal, sabzi, kadhi—simple, yet deeply satisfying. I have always believed: simplicity, when done right, is the ultimate sophistication—like a perfectly made dal.
But the real attraction came after lunch.
The owner proudly took us to his cowshed.
Now, I have seen cows all my life, but this was something else. Jersey cows—imported lineage, carefully bred in India, especially by enterprising Gujaratis—stood like VIP guests. Each cow had fans, air coolers, and better ventilation than most government offices.
“Thirty kilos of milk per day,” the owner declared.
I looked at Dharangdharia and whispered, “Sir, even our boilers don’t give this efficiency.”
He replied in his Western tone, “Roy… this is not cow… this is milk factory.”
These Jersey cows, introduced and popularised in India largely by progressive dairy farmers in Gujarat, revolutionised milk productivity. High yield, controlled diet, temperature management—this was dairy engineering at its finest.
Another entry into my “knowledge bank,” as I like to call it.
Dwarka: Where Time Stands Still
During that trip, we also visited .
Standing by the Arabian Sea, Dwarka felt less like a city and more like a memory frozen in time. The wind carried the smell of salt and mythology. Believed to be the ancient kingdom of Lord Krishna, the town has an aura where history and faith merge seamlessly. The Dwarkadhish Temple rises with quiet dignity, and the rhythmic sound of waves feels like an eternal chant. For a man immersed in turbines and transformers, this was a different kind of power—spiritual, intangible, yet deeply grounding.
Wind and Vision at Okha
We also visited the early wind farm at —one of India’s first experiments with harnessing wind energy. Those turbines, primitive by today’s standards, stood like symbols of a future India—clean, innovative, and forward-looking.
The Man Behind the Myth
The most memorable part, however, was Dharangdharia himself.
Sitting in front, legs stretched, occasionally turning back mid-conversation, he kept entertaining me with his “Western dialogues”:
“Roy… when you face problem… you don’t run… you stare… like gunfighter…”
Then he would squint his eyes, pause dramatically, and whisper, “When you have to shoot… shoot… don’t talk.”
I said, “Sir, in our case—when you have to commission, commission—don’t hold meeting!”
He laughed—a rare, genuine laugh.
That trip was not just a journey from Wanakbori to Sikka. It was a journey through art, agriculture, engineering, spirituality, and human connection.
Even today, when I think of Dharangdharia, I don’t remember the stern Chief Engineer first. I remember the man turning back from the front seat, half-speaking, half-acting, as if life itself was a Western film—and we were all just trying to hit the right target.
Sadly Mr.Dharangdharia is no more,left for his heavenly abode 3 years back!
