She was the Vice-President of the Tamil Nadu Congress Committee from 1957 to 1962, and the Chairman of the State Social Welfare Board from 1957 to 1964.
Ambujammal was a notable scholar in Hindi and Tamil. In 1964 Ambujammal won the padma shri born on 9 October 1897 to C. Kanakasabhapathi Mudaliar of Minjur and Mallika of Nazarethpet village, Poonamallee, Chennai.
The Chief Minister Bhaktavatsam and the Union Minister for Cultural Affairs, Humayun Kabir vehemently opposed the move.She was a significant part of the Women’s India Association (WIA), taking the post of Secretary from 1939 to 1942 and that of Treasurer from 1939 to 1947.With the WIA, the issues she worked of were: Abolition of Child Marriage, Polygamy, and the Devadasi system; and bringing about legislation to protect the rights of women and their property rights.Bhaktavatsalam served as the Parliamentary Secretary to the Minister of Local Self-Government in the day, 2 October 1963, Bhaktavatsalam took office as the Chief Minister of Madras, after Kamaraj resigned to spend more time as an office bearer of the Congress Party under K Kamaraj plan.Bhaktavatsalam is, till date, the last Chief Minister of Tamil Nadu from the Indian National Congress.An associate of Vinoba Bhave, Ambujammal toured Tamil Nadu with him to publicise the Bhoodan movement in 1956.Ambujammal was not in favour of too much industrialization; she believed in the Village Self-Sufficiency model – as advocated by Bhave.She was arrested and sentenced to six months of imprisonment.A thorough Congresswoman, she was part of the Managing Committee of the Hindi Prachar Sabha from 1934 to 1938. As part of her activities with the Hindi Prachar Sabha, she attended the All-India Congress Session in Bombay in 1934.She joined the Salt Satyagraha, and courted arrest.In 1932, she was hailed as the "Third Dictator" of the Congress, and led the Satyagrahis to boycott foreign cloth.