As India moves through another immersion season, district administrations are increasingly treating Ganesh visarjan as a river and waste-management challenge, not just a crowd-management exercise. From artificial immersion ponds and nirmalya collection to restrictions on harmful idol materials and better-planned procession routes, local interventions are beginning to reflect the needs of each water body and city.
 

The Thames offers a useful reminder of what sustained administrative action can achieve. Once declared biologically dead, the river has gradually recovered through decades of work on sewage, pollution and water quality. India’s experience shows that the same principle begins with a simple question: what can administrations change today to ensure that festivals do not leave a lasting burden on rivers and water bodies?