A monitor shows the results of a dynamic pressure measurement for a patient's feet, in Pancharala, on the outskirts of Bengaluru. (Photographer: Dhiraj Singh/Bloomberg)
As the second phase of Covid-19 vaccination rolls out across India, the technology glitches are a reminder of how little we have been able to harness a potent tool that has transformed industry after industry - from telecommunications to financial services, especially in rural areas.