British Sikh engineer, Navjot Sawhney gave up his lucrative career to go and work among rural communities in India. While there, he became fascinated with the problems his neighbour, Divya, was facing  while handwashing clothes, sometimes for up to three hours a day.

Broadcaster and journalist Nkem Ifejika finds out how Nav promised to design a hand- crank, off-grid washing machine for his neighbour to help her avoid the sore joints, aching limbs and irritated skin she got from her daily wash.

Within two years of coming up with the idea, Nav set up his own company, The Washing Machine Project, and trialled his first machine in a refugee camp in Iraq. From that first trip, over five years ago, the project has now provided nearly a thousand machines, free to the users in poorer communities and refugee camps, in eleven countries around the World.