Muzharul Islam was born on 25 December 1923 in Murshidabad. He went to the United States in 1950 where he received his bachelor’s degree in architecture from the University of Oregon. In 1956, he received a scholarship to study tropical architecture at the AA School of Architecture, London. In 1961, he completed his post-graduation under Paul Rudolph from Yale University. At Yale Stanley Tigerman was one of his classmates, and there he came in touch with Louis I Kahn. Muzharul Islam began his career by designing two buildings in the Shahbag area in 1955 – Dhaka University Library and College of Arts and Crafts. Between 1958 and 1964, Islam was an architect in C&B Dept of the Government of East Pakistan.

His most important work was born when the Governor’s Conference of Pakistan decided in 1959, under the leadership of President Ayub Khan, that Dhaka will be second capital of Pakistan. The government decided to build a capital complex at Sher-e-Bangla Nagar, Dhaka. Muzharul Islam was given to design Jatiyo Sangsad Bhaban (National Assembly Building of Bangladesh). But, he brought his teacher Louis Kahn into the project to do a significant work for future generation. Islam worked closely with him from 1965 to Kahn’s death in 1973.

A documentary film on Mazharul Islam named Tini (The Architect) was released by Institute of Architects Bangladesh in 2000, which was directed by Enamul Karim Nirjhar.

Muzharul Islam died on 15 July 2012 at 12.06 am in Dhaka, Bangladesh. He was aged 88.