-Down to Earth The city is still grappling with source segregation, door-to-door collection, waste treatment and processing and on-site organic waste management India’s greatest cleanliness survey, Swachh Survekshan, began in 73 cities in 2016. Uttar Pradesh’s Ghaziabad was ranked 67th in its inaugural survey. Cut to 2019, Ghaziabad was declared the fastest-growing city and ranked 13th in the same survey under cities with a population of more than a million. The city’s waste...

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