In 1941, Kumaramangalam was arrested along with P. Ramamurthi, C. S. Subramaniam and R. Umanath for distributing seditious pamphlets in what came to be known as the Madras Conspiracy Case. Kumaramangalam was later released. During the Second World War Kumaramangalam served as the editor of the communist magazine, People's War, which on the conclusion of hostilities he renamed as People's Age.
Post-independence politics
In the days following India's independence Madras Presidency was gripped by a peasant rebellion, which compelled the provincial government to launch a crackdown on communists. Kumaramangalam was arrested along with other communist leaders and released after the rebellion had subsided. Kumaramangalam favoured friendly relations with the Soviet Union and established the Indo-Soviet Cultural Society. However, with the onset of the 1960s Kumaramangalam began distancing himself from communism. He served as Advocate General of Madras. Following the victory of the Dravida Munnetra Kazhagam in the 1967 Tamil Nadu Assembly elections, Kumaramangalam resigned from the Communist Party of India and joined the Indian National Congress. Kumaramangalam was loyal to Indira Gandhi when the party split and was elected to the Lok Sabha from Pondicherry in the 1971 elections. He was the driving force behind Indira Gandhi's decision in 1973, to appoint Ajit Nath Ray was the Chief Justice of India superseding three senior judges of the Supreme Court of India - J. M. Shelat, A.N Grover and K. S. Hegde. He served as the Minister of Steel and Mines from 1971 until his death in 1973.
Death
Kumaramangalam was killed in the crash of Indian Airlines Flight 440 on May 31, 1973 at the age of 56. Many of the dead were unidentifiable, but his body was identified by a Parker pen and a hearing aid he wore.
Family
Mohan Kumaramangalam married Kalyani Mukerjee, niece of Bengali politician Ajoy Mukherjee in 1943. Ajoy Mukherjee, later, served as the Chief Minister of West Bengal. The couple had a son, Rangarajan Kumaramangalam and two daughters. Rangarajan Kumaramangalam was a member of the Indian National Congress and later, the Bharatiya Janata Party and served as a minister in the Narasimha Rao and Atal Behari Vajpayee governments. Mohan's daughter, Lalitha Kumaramangalam contested the 2004 and 2009 Lok Sabha elections as a Bharatiya Janata Party candidate from Tiruchirapalli and lost on both occasions. The older daughter is Uma Kumaramangalam who was Physics teacher Bal Krishan Kalra's student at Springdale Higher Secondary School in Delhi and is married to Malay Mukherjee. Mohan Kumaramangalam's brother P. P. Kumaramangalam was a distinguished army officer who served as India's Chief of Army Staff. His sister, Parvathi Krishnan was a politician of the Communist Party of India and served three terms as Member of Parliament from Coimbatore. Kumaramangalam's grandson, Muktesh Mukherjee, and his wife Xiaomao Bai, are among the two Canadian passengers aboard Malaysia Airlines Flight 370 which went missing since 8 March 2014. Kumaramangalam's other grandson, son of Rangarajan Mohan Kumaramangalam, and sharing the name with his grandfather, is a Renewable Energy Entrepreneur and carries the family legacy, as the President of All India Professional's Congress, Tamil Nadu Chapter. He unsuccessfully contested the Lok Sabha polls 2014, from Salem on Congress ticket. He is the working president of Tamil Nadu Congress Committee.
Works
Mohan Kumaramangalam was a prominent communist theorist and authored a number of books and pamphlets. Some of his works include:
