IMD issues cold wave alerts for Delhi, Punjab and UP; Mumbai and Kolkata report poor air quality as Bengaluru, Chennai stay milder. https://english.mathrubhumi.com/news/india/india-weather-dec-29-cold-wave-fog-north-poor-air-metros-pqpmqr0i?utm_source=dlvr.it&utm_medium=mastodon #IMDWeather #IndiaWeatherUpdate #ColdWaveAlert #DenseFog