Participatory budgeting began in Brazil in the late 1980s as a mechanism for citizens to decide how public funds are spent. It has since spread to many other countries. The process typically involves citizens brainstorming and voting on proposed public projects. In Pune, India, participatory budgeting allocates 50 lakh rupees per neighborhood for projects like parks, roads, and sanitation. In London, participatory budgeting allows citizens to vote on how to spend £140,000 in each of the city's 17 wards. The process in Medellin, Colombia improved infrastructure and social programs in slums. Tartu, Estonia's process includes an online submission and voting system. Santo André