The speed with which the work was done and the quality of the contents of the gazetteers won praise from all quarters including the Central Gazetteers Unit, Government of India.. From 1968–1977, Menon functioned as the Registrar of Kerala University. He worked as a visiting professor in the Department of History, University of Calicut under the UGC scheme from 1977–78. From 1979–81 he was a professor in the Institute of Public Administration (now the Institute of Management) under the Government of Kerala. Menon was a member of the editorial board of journals including the "Journal of Indian History" and "Journal of Kerala Studies", both published by the Department of History, University of Kerala. In 2000 Menon was elected the President of Visakhapatnam South Indian History Congress. Menon was known for his opposition to the Marxist Communist Party of India. Menon refused to write a history of Indian anti-colonial movement in Kerala for the Congress Party because he "did not want to be known as a historian of the Congress". The Communist Party of India (Marxist)-led coalition government in Kerala requested Menon in 1997 to write on Indian anti-colonial movement in Kerala "in consultation with E. M. S. Namboodiripad". The book was never published by the Government of Kerala and Menon withdrew from the task. He remarked on the issue, "It is not an objective historian's job to collect facts to suit theories. A true historian is a judge and not a lawyer... politicians can act only as lawyers." Sreedhara Menon published nearly 25 books in English and Malayalam.