Surendra Mohan Kumaramangalam was an Indian politician and communist theorist who was a member of the Communist Party of India, and later, the Indian National Congress. He also served as Advocate-General for Madras State from 1966 to 1967. Kumaramangalam was killed in the crash of Indian Airlines Flight 440 on May 31, 1973, at the age of 56.

Paramasivan Subbarayan was an Indian politician, freedom fighter and diplomat and was the First Minister of Madras Presidency, India's ambassador to Indonesia and Union Minister of Transport and Communications in Jawaharlal Nehru's government. He was the father of General P. P. Kumaramangalam, who served as India's Chief of Army staff, and of politician Mohan Kumaramangalam. He was also the grandfather of INC and BJP politician and Union Minister Rangarajan Kumaramangalam.