Karmakar's works are also within the list of the individual collections of Lady Wellington, Dr. Bhabani Charan Law family of Kolkata, Lord Lytton and the Pramatha Chaudhury.
[4][5] One of his most prominent students was mother of pearl artist Manu Munshi.
He was also received a silver medal at the San Francisco International Art Exhibition in 1939.
In 1943, Karmakar won the bronze medal with merit at the Art Exhibition held in San Francisco.
He was working as a Senior Professor in the Department of Advertising at the Government College of Art and Craft.