New Delhi, Nov 19 (PTI) The Anand Vihar smog tower is reducing particulate pollution by up to 20 per cent, while costing the government around Rs 11–12 lakh per month in its operation and maintenance, according to a response to an RTI query.

Responses from the Central Pollution Control Board (CPCB) confirm that the tower, often questioned for its effectiveness, remains operational and continues to lower PM2.5 and PM10 levels by “up to 20 per cent" within a 200–400 metre radius. This assessment is based on evaluations carried out jointly by IIT-Bombay and IIT-Delhi, the CPCB said in its reply dated November 13, 2025.

However, the new figures mark a contrast from the earlier CPCB data.

In October 2022, the agency had stated in a separate RTI response that PM2.5 levels were reduced by 8–39

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