With citizens and government bodies looking to promote bicycles, a city-based engineer has claimed to have invented a solar-motor pedi-cab, (a tricycle of sorts) that could potentially replace the traditional auto rickshaw. Chunabhatti-based PK Pillai has now sent the designs to IIT-Bombay for comments are looking for funding to promote the model commercially. The solar powered version of the humble cycle-rickshaw promises to offer a solution to the urban traffic woes in the suburbs.