What does '(2)' signify in the context?
In the context provided, "(2)" signifies clause (2) of Article 19 of the Indian Constitution. This clause explains that nothing in sub-clause (a) of clause (1) shall affect the operation of any existing law or prevent the state from making any law with reasonable restrictions on the exercise of the right conferred by the said sub-clause, in the interests of the sovereignty and integrity of India, among other things.