<P> However, in calculating period of six months, those days are not considered when house is prorogued or adjourned for more than 4 consecutive days . </P> <P> If the above conditions are satisfied, the President of India may summon joint sitting of both the houses of parliament . </P> <P> Not all bills can be refereed to a joint sitting of Parliament . There are two exception . </P> <P> 1 . Money Bill </P>

Who presides over the joint sitting of the two houses of the parliament