India, June 5 -- For 58-year-old Smita Ahuja, what began as a part-time activity turned into her life's mission to promote circularity in waste management, encourage sustainable practices and empower communities to conserve resources.

Ahuja, a resident of Gurugram for over 20 years, said that she has witnessed the city's transformation from a green, open landscape to an urban hub with a growing sanitation crisis.

An ex-marketing professional, Ahuja has worked for the past 13 years to promote efficient waste management. After working with several NGOs, she said that she established her own NGO, Earthtree, in June 2021.

According to Ahuja, Earthtree aims to enable rural and urban communities along with educational institutions to adopt s...