The campaign was successful: Agastheeswaram, Kalkulam, Thovalai, Vilavancode and half part of Shenkottai taluks were merged with Madras as per the States Reorganisation Act, 1956.
The princely state of Travancore had multiple instances of Caste discriminations and this sowed seeds for linguistic contest over this region in earlier half of 20th century.
The Proselytism by Anglican Churches among lower castes helped the language movement gather more momentum.
By 1951, the demography of region started showing major changes the population speaking Tamil grew close to 48% and Malayalam dipped to 51%.
The migration of Tamils from areas east of Aralvaimozhi pass to fertile Nanjinad plains of Kanyakumari district and migration of Malayalis to urban centers of Travancore–Cochin such as Thiruvananthapuram and Kochi aided this and concerted attempts by linguistic and caste groups under aegis of TTNC to achieve linguistic majority contributed to the demographic inversion.
[3] During that period the Travancore State Congress favoured the idea of uniting all the Malayalam speaking regions and the formation of a "Unified Kerala".
Tamils gathered together at Nagercoil on 16 December 1945 under the leadership of Sam Nathaniel and formed the new political party All Travancore Tamilian Congress.
A popular and leading advocate from Vilavancode Mr. A. Nesamony organised a meeting of his supporters at Allan Memorial Hall, Nagercoil on 8 September 1947.
Condemning the attitude of the police, T.T.N.C leaders from Nagercoil went to Munnar and participated in agitations against the prohibitive orders.
At the end, Pattom Thanu Pillai's ministry was toppled and normalcy returned to the Tamil regions.
[7] The central government had appointed Fazal Ali Commission(1953 dec) for the states reorganisation based on language.
Based on this report, Devikulam - Peermedu and Neyyattinkara Taluks were merged with Kerala state.
[9] On 1 November 1956 - four Taluks Thovalai, Agastheeswaram, Kalkulam, Vilavancode were recognised to form the New Kanyakumari District and merged with Tamil Nadu State.
[10] However it was due to some decisions of Pattom Thanu Pillai, who was the first prime minister of Travancore, that they retained in the modern-state of Kerala.