India's astounding number of poor people continues to struggle in city slums and on tiny farms, even as the nation's economy expands at a 9 percent clip with the boom in services-oriented businesses from technology to banking. But as Chazen student travelers learned on a recent journey, a number of for-profit models are boosting living standards for poor farmers, who account for roughly half of India's population, with microloans and new technology. In teeming cities like Mumbai, entrepreneurs are building a for-profit model for ambulance service. Near Hyderabad, investors are expanding small hospitals for women in need of basic, affordable care. Even established companies are setting aside foundations to support traditional artisans. The end result: hope for people struggling on the tough side of India's wealth gap.