Several districts in Tamil Nadu have declared holidays for schools and colleges following continuous heavy rainfall that has disrupted daily life across the region. The India Meteorological Department (IMD) has also issued a yellow alert for 10 districts in Kerala, warning of more rain, thunderstorms, and possible flooding. Areas in Kanyakumari, Tirunelveli, and Thoothukudi witnessed severe downpours leading to waterlogging and traffic delays. Disaster management teams are on high alert, and residents in low-lying and hilly regions have been advised to remain cautious due to risks of landslides and flash floods.    

Tamil Nadu is on high alert as continuous heavy rain hits several districts. The weather office has issued a red alert for eight coastal districts, including Cuddalore, Mayiladuthurai, and Nagapattinam. A low-pressure area over the Bay of Bengal may soon develop into a cyclone. Schools and colleges in affected areas are closed as precaution. Chennai recorded up to 100 mm of rainfall, with water released from reservoirs to prevent flooding. Fishermen have been told not to venture into the sea. Chief Minister MK Stalin reviewed emergency measures while rescue teams prepared for possible evacuation and relief work. (PC: NDTV)

Delhi’s air quality hit its worst post-Diwali level in five years despite claims of using ‘green’ firecrackers. PM2.5 levels touched 488 micrograms per cubic metre on average and peaked at 675 on Diwali night — about 100 times the safe limit. Experts said weak winds and dropping temperatures trapped the pollution. Data showed that local emissions, not stubble burning, were the main cause this year. The air quality index was higher than the last three years, proving that ‘green’ crackers made little difference. Health experts warned of serious risks to children and the elderly. (PC: NDTV)

Delhi Environment Minister Manjinder Singh Sirsa ruled out immediate artificial rain plans despite post-Diwali air quality hitting 'severe' levels across the capital. While addressing concerns Tuesday, Sirsa emphasized cloud seeding requires actual clouds, responding to critics he called "illiterate people burning with vengeance." The Delhi government remains fully prepared with trained pilots and necessary permissions secured for the cloud seeding operation. Both pilots recently completed trial flights, familiarizing themselves with designated areas over four days of successful training. Sirsa confirmed they're awaiting the Meteorological Department's green signal within two to three days. Once favorable weather conditions emerge with cloud formation, sample seeding will commence immediately to combat worsening air pollution plaguing Delhi. (PC: Times Now) 

Delhi has been ranked the world’s most polluted city by Swiss air quality firm IQAir, recording an AQI of 350 on October 21, 2025. Mumbai and Kolkata also made the top 10, at 5th and 8th respectively. Lahore and Karachi from Pakistan ranked 2nd and 4th. The spike follows Diwali celebrations, where firecracker use exceeded Supreme Court’s permitted hours. Several Delhi areas, including Bawana and Jahangirpuri, recorded AQI levels above 401, classified as ‘severe’. The CPCB defines AQI above 300 as ‘very poor’ and above 400 as ‘severe’. The list also includes cities from Kuwait, Uzbekistan, Qatar, Australia, and Indonesia, highlighting a global air quality crisis.

Delhi-NCR's air quality plummeted into the 'red zone' following Diwali celebrations with fireworks on Monday night, turning the air toxic with thick haze. According to the Central Pollution Control Board, 36 out of 38 monitoring stations recorded 'very poor' to 'severe' air quality. Ghaziabad recorded the highest pollution at 329 AQI, while Gurugram hit 340 and Rohtak 345. Despite Supreme Court restrictions allowing green firecrackers only between 8-10 pm, celebrations continued past the deadline. Delhi's overall AQI reached 345, with four stations including Dwarka, Ashok Vihar, Wazirpur, and Anand Vihar reporting 'severe' levels above 400. The Commission for Air Quality Management invoked Stage II GRAP measures across Delhi-NCR.

Delhi’s air quality worsened sharply on Diwali, with 34 of 38 monitoring stations recording pollution levels in the ‘red zone’. The city’s average Air Quality Index (AQI) rose to 345, up from 326 a day earlier, according to the Central Pollution Control Board. Wazirpur recorded the worst AQI at 423, followed by Dwarka and Anand Vihar. Officials warned that pollution may rise further in the coming days. The Commission for Air Quality Management has enforced Stage II of the Graded Response Action Plan across Delhi-NCR. The Supreme Court had earlier allowed limited use of green firecrackers for Diwali celebrations. (PC: X)

Chennai experienced heavy rain on Monday as Diwali celebrations began. Areas including Velachery, Medavakkam, Pallikaranai, and ECR Neelankarai reported waterlogging, causing inconvenience to residents. The India Meteorological Department (IMD) forecast light to moderate rain with thunderstorms in isolated places across the state. Coastal Tamil Nadu is likely to see continued rainfall until October 22. Rainfall between 64.5 mm and 111.5 mm is expected in several districts. IMD also warned of a low-pressure area forming over the Bay of Bengal, which may turn into a depression in the coming days. CM MK Stalin reviewed the monsoon preparedness with district officials.

Delhi celebrated Diwali amid toxic air as AQI entered "very poor" category, triggering Stage 2 GRAP curbs Sunday evening. Monday morning saw two stations hit "severe" levels as Wazirpur recorded 419 AQI and Anand Vihar 411, while 27 stations remained "very poor." Sunday night showed 24 of 38 monitoring stations in dangerous zones. CAQM imposed 12 preventive measures including diesel generator restrictions, interstate bus limitations, and increased parking fees. Supreme Court permitted green crackers between specific hours (6-7 am, 8-10 pm) on Diwali eve and festival day. IMD forecast temperatures around 33°C maximum and 21°C minimum with morning mist expected throughout the week.

Delhi's Diwali celebrations turned toxic as AQI hit 335 in "very poor" category by Monday 7:30 am, with most monitoring stations exceeding 300. Anand Vihar recorded the worst at 417 in "severe" category. The Commission for Air Quality Management invoked Stage II of Graded Response Action Plan on Sunday after Supreme Court permitted green crackers within restricted timeframes (6-7 am, 8-10 pm). Twenty-four of Delhi's 38 monitoring stations reported "very poor" air quality Sunday night. IMD forecasts further deterioration to "severe" category Tuesday. Chief Minister Rekha Gupta urged residents to use only green crackers per Supreme Court orders, celebrating traditionally with diyas and rangoli while authorities maintain strict vigilance on dust mitigation measures.