22 innovations shortlisted to tackle air pollution in Delhi

The Delhi government shortlisted 22 innovations from 284 ideas to combat air pollution, planning trials for effective solutions at pollution hotspots.

Published on: Mar 11, 2026, 04:14:15 IST

By Jasjeev Gandhiok

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The Delhi government on Tuesday said it shortlisted 22 innovations to tackle air pollution from the 284 ideas it received as part of the “Innovation Challenge” organised by the government in October last year.

22 innovations shortlisted to tackle air pollution in Delhi

The ideas were submitted by individuals, researchers and expert institutes.

While chairing a review meeting to assess the challenge’s next steps, Delhi’s environment minister Manjinder Singh Sirsa said these 22 ideas will now be prepared for on-ground trial runs and tested at pollution hotspots in the Capital.

“In the coming weeks, we will rigorously measure the effectiveness of these innovations in reducing particulate pollution and other key parameters,” said Sirsa.

Sirsa said that in recent weeks, the government was finalising testing protocols and the readiness of the devices.

“Trials should be scientifically robust, transparent and geared towards quick decision-making on what works best for Delhi.” Sirsa told officials.

The 22 ideas include 13 solutions focused on controlling vehicular pollution such as vehicle-mounted air purifiers, retrofitted emission-control systems, bio-alkaline exhaust scrubbers. Retrofits have also been shortlisted for buses, trucks and gensets. The remaining nine devices target ambient air, including modular and stationary air-purification systems, dust-suppression units, smog-control technologies and other solutions designed for open spaces, road corridors and industrial or construction zones, Sirsa said.

“This challenge is a mission to find real, measurable solutions that can cut pollution on the ground.” he added.

ABOUT THE AUTHOR
Jasjeev Gandhiok
Jasjeev Gandhiok is an Assistant Editor with Hindustan Times, where he covers environment, climate change, the clean energy transition and wildlife at the National Bureau. Gandhiok has over a decade of experience in journalism and is based in Delhi. He has reported extensively on Delhi and the National Capital Region (NCR). This includes the region's air pollution woes, a polluted Yamuna and on urban wildlife still thriving in the region. He joined HT in October 2021. Prior to that, he had five-year stint at The Times of India in Delhi, where he also covered Delhi, with a focus on environment and wildlife. Gandhiok has covered some recent events around the Capital too, ranging from the farmers' protests, the northeast Delhi riots and the CAA-NRC protests, reporting from the ground on all of these. He also travels across the country to report on how environment and climate change impact everyday life, while also writing on endangered species. His reports in 2019 on toxic leachate from Delhi's landfills led to the National Green Tribunal (NGT) taking suo motu cognisance and ultimately asking the state government to start bio-mining to flatten and remove all three landfills in the capital. He also closely tracks the implementation of government policies on climate, renewable energy and environmental protection. His focus remains on impactful, public-interest journalism which explains how environmental decisions affect people's everyday lives.Read More

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