India meteorology department

The anonymous 'Weatherman of Mumbai' is a banker by day and a weather enthusiast whenever time permits. His tweets and accurate localised weather updates, one argues, help thousands of Mumbaikars better than the India Meteorological Department (IMD).

Ruchi Ram Sahni was a prominent scientist from undivided Punjab, as well as a teacher, meteorologist, physicist, and member of the Brahmo Samaj. Known for being one of the earliest promotors of Punjab as a science hub, lesser known are his contributions in saving thousands of lives in Orissa, and how he was never given credit for it due to his race.

The move came into action as part of a host of measures enforced after the capital’s air quality index raised alarms, hitting the ‘very poor’ category.