ABC7's media partner, The Mercury News says it began with a video promoting an organization called Embrace.
They put the video on YouTube where it was seen by a CEO in India. He put it on digital billboards across the country.
Embrace wants to make low-cost baby incubators widely available.
They believe the warmers will save the lives of hundreds of thousands of children in developing countries.
The Stanford students -- Karla Gallardo, Lavanya Ashok, and Aastha Gupta -- say the project was the highlight of their time in business school.