The first thing noticeable about Izhaar Hussain Shaikh is the fatigue marking his youthful face. The second thing is that his phone constantly buzzes. The 30-year-old ambulance driver works for HelpNow, an initiative started by three engineering students in 2019 to help the stretched services of first responders in the Indian coastal city of Mumbai. It charges patients, but services are free for the city's administrators, police force, medicos and the poor.