He earned his MBBS from A J Institute of Medical Science, Mangalore, Karnataka,[3] and later switched his profession to music, following his passion.
[4] Reviewer from The News Minute wrote "The genre-bending soundtrack composed by Midhun Mukundan, in particular, marks itself off as one of the stars of the show, setting and unsettling moods with equal rapidity".
[5] Even before the release of Kahi, Midhun met filmmaker and actor Raj B. Shetty who was looking out for a newcomer for his film Ondu Motteya Kathe (2017).
In 2020, he composed for the PRK Productions and Raj B. Shetty starrer comedy film Mayabazar 2016 which had a song recorded by popular playback singer S. P. Balasubrahmanyam and featured Puneeth Rajkumar.
His other releases include Poovan and Ramachandra Boss & Co both in Malayalam and Swathi Mutthina Male Haniye in Kannada.