The Prime Minister is the most important political institution in the country. He/ She have wide-ranging powers.
(i) He chairs cabinet meetings.
(ii) His decisions are final in case of disagreement between departments.
(iii) He distributes and redistributes work to ministers
(iv) He also has power to dismiss ministers.
(v) When the Prime Minister quits, the entire ministry quits. Thus within the cabinet the Prime Minister is the most powerful so much so that parliamentary democracies are sometimes seen as prime ministerial form of government.