Explanation:

The strength of the council of ministers is fixed at ten per cent of the total strength of the assembly, that is, seven—one chief minister and six other ministers. The chief minister is appointed by the President (not by the Lt. Governor). The other ministers are appointed by the president on the advice of the chief minister. The ministers hold office during the pleasure of the president. The council of ministers is collectively responsible to the assembly.
When a situation arises in which the administration of the territory cannot be carried on in accordance with the above provisions, the president can suspend their (above provisions) operation and make the necessary incidental or consequential provisions for administering the territory. In brief, in case of failure of constitutional machinery, the president can impose his rule in the territory. This can be done on the report of the lt. governor or otherwise. This provision resembles Article 356 which deals with the imposition of President’s Rule in the states.