Explain the concept of 'Article 31C' mentioned in the context.
Article 31C, as mentioned in the context, is a constitutional provision in India that saves laws made to implement certain directive principles from being declared void on the grounds of violation or abridgement of any rights guaranteed by Part III of the Indian Constitution. These rights include the right to equality before law (Article 14), and several fundamental freedoms (Article 19). The article also states that no court can question the validity of a law on the ground that it does not give effect to the policy intended to secure the directive principles specified in Part IV of the constitution. However, this protection is not applicable unless the law has been passed by the state legislature and has received the assent of the President.