Surendra Singh Choudhary, known as Bittu Tabahi, is a 20-year-old from Madhya Pradesh who went viral after cleaning the heavily polluted Ajnar River with minimal resources. His work drew attention from Boyan Slat, founder and CEO of The Ocean Cleanup, who offered him a job. Choudhary has gained wide recognition online, including praise from Anand Mahindra, while he continues his river-cleaning efforts.