NEW DELHI — Residents and activists in the Indian capital are mounting fresh protests and legal challenges after weeks of hazardous Delhi smog hanging over the city. They accuse authorities of failing to fully enforce anti-pollution measures even as courts, doctors, and new data underline the scale of a crisis that has become a winter ritual, Tuesday, Dec. 9, 2025.
Delhi smog fuels rare street protests.
Last month, hundreds of students, parents, and environmentalists marched near India Gate, demanding freedom from Delhi smog and the fundamental right to breathe, despite police orders restricting assemblies around the monument. The clean-air rally, described by a report by news portal The Federal, ended with officers detaining several protesters, including children, under public-order provisions.
Opposition leader Rahul Gandhi later wrote that clean air is “a basic human right” and asked why peaceful protesters were being “treated like criminals,” sharpening criticism of both city and federal authorities over Delhi smog. Photo essays from India Gate have shown lines of police in riot gear facing young demonstrators in masks, a stark image of how winter pollution has become a flashpoint on the streets and online.
Delhi smog curbs face questions in court.
While protesters demand tougher action, India’s Supreme Court is pressing officials on why existing curbs have not delivered cleaner air. At a Dec. 1 hearing, the court asked the Centre to identify the most significant driver of pollution. It stressed that “stubble burning is not the only thing.” It sought detailed reports on whether construction bans, industrial controls, and vehicle rules are actually being enforced, according to India Today.
In mid-November, Delhi’s average Air Quality Index hit 413 in the “severe” zone, triggering Stage III of the Graded Response Action Plan, which bans most construction, shuts many polluting industries, and restricts diesel generators, The Times of India reported. Those restrictions, including hybrid schooling for younger children, were only rolled back late last month after levels eased from “severe” to “very poor,” even as doctors warned that breathing such air remained unsafe.
A crisis years in the making
The current Delhi smog emergency sits atop nearly a decade of similar winter flashpoints. In 2016, the national government declared an “emergency,” shutting schools for three days and halting building sites as toxic air climbed to more than 16 times India’s safety limit, according to a Guardian report from that year.
Authorities declared a public health emergency in 2019 when the city’s AQI pushed above 500, closing schools and banning construction across Delhi and its suburbs. A year later, an IQAir-based study published by Reuters found that New Delhi was the world’s most polluted capital for the third straight year, with PM2.5 levels many times above global health guidelines.
Health emergency and unequal impacts
A recent analysis by French newspaper Le Monde estimates that dirty air now causes roughly 17,000 deaths every year in the capital, cutting average life expectancy by more than 8 years if the World Health Organization’s limits were met. Researchers cited PM2.5 readings dozens of times above recommended levels through much of November, even as some official monitors malfunctioned or went offline.
Nationwide, over 80 Padma awardee doctors have warned that bad air has become a “direct health emergency,” pointing to nearly 1.7 million pollution-linked deaths annually across India and hundreds of thousands of child deaths, along with rising heart attacks, strokes, and diabetes in polluted cities like Delhi. For many residents who cannot afford air purifiers or seasonal escapes, Delhi smog now stands not just for a climate and governance failure, but for a widening gap between those who can buy cleaner air and those who must breathe whatever the city offers each winter.
