The Cross Roads case
Romesh Thappar v. State of Madras
Held. Madras had banned the entry and circulation of the journal Cross Roads in the State on grounds of public safety. The Court struck the order down: freedom of speech includes freedom to circulate, and Article 19(2) as it then stood allowed restrictions only for graver dangers such as undermining the security of the State.
Why it matters. Parliament responded within a year: the First Amendment (1951) widened Article 19(2) to add “public order” and “friendly relations with foreign States”.
Later Built on in Kedar Nath Singh (1962)