Nonagenarian Sudha Pai spent the past four decades of her life promoting the idea of waste segregation and composting to the people of Pune. With 'My Garbage, My Responsibility', as her mantra she tries to motivate people to compost their waste and live a green life. For nearly 40 years now, Sudha Pai dedicates at least two hours every day to teach people how they can compost and create gardens, even in the smallest spaces, thereby reducing huge chunks of waste which ends up clogging India's already dying landfills.