Ashesh Prosad Mitra, Indian atmospheric physicist (Kolkata 21 February 1927 – New Delhi 03 September 2007)

Authored 150 papers and several books and monographs

Authored important studies on lower ionosphere

Showed that atmospheric chemistry changes during a flare

Introduced a method of ionospheric prediction

Introduced new techniques for detecting solar flares such as the use of cosmic radio noise and for analysis of flare effects of the atmosphere