Kajodi has been walking for three hours. For every step now, she has to lean herself on a stick and push herself using her arms. But she has to keep walking. Nobody knows her certain age. She is over 90, says one while another claims she is over 100. The family group she is with is already ahead of her. They lived in Noida Sector 15 – most of the members selling toys at traffic lights in Delhi – and are now walking back to their village in Rajasthan’s Sawai Madhopur, almost 400 km away.