Pandemonium UPA style
The executive power of the Union vests in the president and that of the states in governors. However, this power is to be exercised on the aid and advice of the council of ministers. The Constitution has Articles 77 for the Centre and 166 for the states under which rules are to be framed by the president or the governor as the case may be for transaction of the business of government and for allocation of business among ministers. It is under these rules that ministries and departments are formed.