A Delhi schoolgirl, Mahi Malhani, developed TRASHbot, an AI-powered robot to tackle litter. Inspired by a visit to Sundar Nursery, the Class 12 student's invention autonomously collects and sorts waste. Tested successfully in schools and residential societies, TRASHbot uses sensors and AI for efficient waste management, earning national recognition and paving the way for smarter, cleaner communities.