Dravidian Movement during second World War and after:
In 1939, the congress protested the government’s declaration involving India in the Second World War which led to the resignation of congress ministry. In Madras Presidency Rajaji’s ministry had resigned but Periyar raised the demand of Dravida Nadu on the ground that independence prior to socio-cultural equality would be injurious to Tamil interests. In 1949, Dravidar Kazhagam split and Dravida Munnetra Kazhagam was formed.
In 1951, the Supreme Court struck down communal reservations in higher education. Immediately Periyar launched a major agitation for the restoration of communal reservation.
Consequently, the first constitutional amendment Act was passed in the Parliament in favour of reservations for socially and educationally backward classes.