While A.K. Gopalan vs. State of Madras, Menaka Gandhi vs. Union of India, and Pavement Dwellers Case (Olga Tellis vs. Bombay Municipal Corporation) are landmark cases directly related to the interpretation and expansion of the scope of Article 21 (Right to Life and Personal Liberty), the Express Newspapers case primarily dealt with issues concerning freedom of speech and expression (Article 19(1)(a)) and the right to carry on trade (Article 19(1)(g)) in the context of labour laws for newspaper employees. Its direct relevance to the core principles or expansion of Article 21 is not as pronounced as the other cases listed.