Solution:

A K Gopalan vs State of Madras

• A K Gopalan was a communist leader who was detained in the Madras Jail under Preventive Detention Act,1950 and challenged his detention by stating that his civil liberty was being hampered as he had the right to equality of law.
• The supreme court examined that he was detained according to the procedure established by law and rejected his argument. The supreme court at that point of time believed that each article was separate in the Indian constitution.