Explain the Article of the Constitution under which powers of municipalities are mentioned.

Article 243 W of the Constitution of India deals with Powers, Authority and Responsibilities of Municipalities. It provides that subject to the provisions of the Constitution, the Legislature of a State may, by law, endow: (a) the Municipalities with such powers and authority as may be necessary to enable them to function as institutions of self-government and such law may contain provisions for the devolution of powers and responsibilities upon Municipalities, subject to such conditions as may be specified therein, with respect to: the preparation of plans for economic development and social justice; the performance of functions and the implementation of schemes as may be entrusted to them including those in relation to the matters listed in the Twelfth Schedule; (b) the Committees with such powers and authority as may be necessary to enable them to carry out the responsibilities conferred upon them including those in relation to the matters listed in the Twelfth Schedule.