Which function of management ensures a manager

Which function of management ensures a manager that activities in an organisation are performed as per plans? Name and state some points of its importance.

Controlling ensures that the activities in an organisation are performed as per plans. Importance of controlling can be highlighted by the following points:
(i) It helps in achieving the organisational goals.
(ii) It helps in judging the accuracy of standards.
(iii) It facilitates efficient use of resources.
(iv) It provides direction to all activities and thus, it facilitates coordination.