The National Sample Survey Organization (NSSO) Report, 2002, estimates the number of disabled people in the country to be 18.5 million out of which over 10 million have some kind of locomotor disability. Developing assistive devices for people affected by locomotor impairments is a key focus area of R2D2 located in the Machine Design Section in the Department of Mechanical Engineering at IIT Madras. The goal is to engineer and develop indigenous solutions that are functional and affordable.