NEW DELHI: The world hit 7 billion people last week, and I think I met half of them on the road from New Delhi to Agra here in India. They were on foot, on bicycle, on motor scooters.

They were in pickups, dented cars and crammed into motorized rickshaws. They were dodging monkeys and camels and cows. Somehow, though, without benefit of police or stoplights, this flow of humanity that is modern India impossibly went about its business.

But just when your mind tells you that this crush of people will surely overwhelm all efforts to lift the mass of India out of poverty, you start to notice a pattern: Every few miles there’s a cellphone tower and a fresh-looking building poking out of the controlled chaos. And the sign out front invariably says “school” – engineering school, biotechnology school, English-language school, business school, computer school or private elementary school. India is still the only country I know where you can find a billboard advertising “physics degrees.”

All these schools, plus 600 million cellphones, plus 1.2 billion people, half of whom are under 25, are India’s hope – because only by leveraging technology and brains can India deliver a truly better life for its masses. There are a million reasons why it won’t happen, but there is one big reason it might.

The predicted really is happening: India’s young techies are moving from running the back rooms of Western companies, who outsourced work here, to inventing the front rooms of Indian companies, which are offering creative, low-cost solutions for India’s problems. The late C K Prahalad called it “Gandhian innovation,” and I encountered many examples around New Delhi.

Meet Vijay Pratap Singh Aditya, the CEO of Ekgaon. His focus is Indian farmers, who make up half the population and constitute what he calls “an emerging market within an emerging market.” Ekgaon built a software program that runs on the cheapest cellphones and offers illiterate farmers a voice or text advisory program that tells them when is the best time to plant their crops, how to mix their fertilizers and pesticides, when to dispense them and how much water to add each day.

“India has to increase farm productivity,” explains Aditya, “but our farms are small, and advisers from the Agriculture Department can’t reach many of them. So they go for hearsay methods of planting, which leads to low productivity and soil desertification.” Using cloud computing, Ekgaon tailors its advice to each farmer’s specific soil, crop and weather conditions. Some 12,000 farmers are already subscribing ($5 for one year), and the plan is set to grow to 15 million in five years.

Meet K. Chandrasekhar, the CEO of Forus Health, whose focus is “avoidable blindness” among India’s rural poor. A quarter of the world’s blind people, some 12 million, are in India, Chandrasekhar explains, and more than 80 per cent of those are blind as a result of a lack of screening and a lack of ophthalmologists in rural areas.

In the past, comprehensive screening required multiple expensive diagnostic devices to check for diabetic retinas, cataracts, glaucoma, cornea and refraction problems, all of which cause 90 per cent of the avoidable blindness in India. So Forus invented “a single, portable, intelligent, noninvasive, eye prescreening device” that can identify all five of these major ailments and also provide an automated “Normal or Needs to See a Doctor” report; it can be run by a trained technician, who through telemedicine connects patients to a doctor.