Constitution of India, 1949
(1) Each House of Parliament may make rules for regulations, subject to the provisions of this Constitution, its procedure and the conduct of its business.
(2) Until rules are made under clause (1), the rules of procedure and standing orders in force immediately before the commencement of this Constitution with respect to the Legislature of the Dominion of India shall have effect in relation to Parliament subject to such modifications and adaptations as may be made therein by the Chairman of the Council of States or the Speaker of the House of the People, as the case may be.
(3) The President, after consultation with the Chairman of the Council of States and the Speaker of the House of the People, may make rules as to the procedure with respect to joint sittings of, and communications between, the two Houses.
(4) At a joint sitting of the two Houses the Speaker of the House of the People, or in his absence such person as may be determined by rules of procedure made under clause (3), shall preside.