[4] As delegate she held a speech at the United Nations General Assembly in December 1948 at the adotion of the Universal Declaration of Human Rights.

[4] Retiring from political service in 1967, she turned to social work and also to writing, authoring among other things a book on Indian women for the Oxford Pamphlets on Indian Affairs series, published by Oxford University Press.

In 1988, she along with A. P. Udhayabhanu and Johnson J. Edayaranmula established Alcohol & Drug Information Centre (ADIC)-India and served as its president till her death.

She also served as president of the All India Committee for the Eradication of Illiteracy Among Women and as chairman of the Kasturba Gandhi National Memorial Trust from 1972 to 1985.

[10] Lakshmi Menon's tenure as Minister of State in Nehru Government was instrumental in smoothing the bureaucratic procedure involved in setting up Thumba Equatorial Rocket Launching Station at Trivandrum.