[1] Mujumdar was born on 31 July 1935 at Gadhinglaj, a Taluka in Kolhapur District in Maharashtra.
He joined Fergusson College, Pune as Professor and Head of Department in Botany which position he held for 20 years.
He has published over 50 original research articles in several national and international scientific journals.
[2] He has received Punyabhushan (2009), FIE Foundation Puraskar (2006), ‘Maharashtra Gaurav Puraskar’ (2003), Top Management Club Pune's “Excellence in Education” Award, the Rotary club of Pune's ‘Service Excellence Recognition Award (SERA)’, The Rotary Foundation of Rotary International Paul Harris Fellow, Giant International Life Time Achievement Award, Lion Gaurav Puraskar, Pune Municipal Corporation's ‘Roll of Honour for Life-Time Achievement’ (2006) and Pune Festival Award.
Fergusson College Alumni Association felicitated him as a Distinguished Alumnus and awarded him with 'Fergusson Gaurav Puraskar', on 13 January 2024, at the hands of Chhatrapati Shahu Maharaj (Shahu II of Kolhapur), the Chairperson of Deccan Education Society which runs the Fergusson College.