Solution:

The joint session of Indian Parliament has been called only for three times until now. It was called to pass three bills which are the Dowry Prohibition Act of 1961, the Banking service commission Repeal Bill of 1978 and the prevention of Terrorism Act of 2002.
The Parliament of India is bicameral. Concurrence of both houses are required to pass any bill. However, the makers of the Constitution of India anticipated situations of deadlock between the upper house i.e. Rajya Sabha and the lower house i.e. Lok Sabha. Therefore, the Constitution of India provides for Joint sittings of both the Houses to break this deadlock. The joint sitting of the Parliament is called by the President (Article 108) and is presided over by the Speaker or, in his absence, by the Deputy Speaker of the Lok Sabha or in his absence, the Deputy-Chairman of the Rajya Sabha. The Chairman doesn’t preside over the joint session at any means/cost. If any of the above officers are not present then any other member of the Parliament can preside by consensus of both the House.