He completed his bachelor's and master's from University of Rajshahi in political science.
[1] Mridha started his career in 1968 as a lecturer in the Department of Political Science at Murari Chand College.
[1] Mridha served as an executive member of Bangladesh Cricket Board.
In 1972, he made his debut as a commentator at a friendly match between Kolkata's East Bengal Club and Rajshahi District football team.
[1] Mridha had been suffering from typhoid followed by pneumonia before his death on 30 March 2010 in Rajshahi.