Yes if at every level there is delegation than it's automatically become decentralisation.
Delegation is compulsory decentralisation is optional

Introduction:
The concepts of decentralization and delegation are closely related and often used in the context of organizational structure and decision-making processes. While they have distinct meanings, they share similarities and are often interlinked in practice.

Decentralization:
Decentralization refers to the distribution of authority, decision-making power, and responsibilities from a central authority to lower levels within an organization or system. It involves dispersing power and decision-making capabilities to various individuals or groups. Decentralization can occur in different forms, such as political, administrative, or fiscal decentralization, depending on the context.

Delegation:
Delegation, on the other hand, is the process of entrusting authority, tasks, and responsibilities by a higher authority to a subordinate or a lower level within an organization. It involves transferring decision-making power and accountability to others while retaining ultimate accountability for the outcome. Delegation allows individuals or teams to make decisions and take actions within defined boundaries.

Relationship between Decentralization and Delegation:
There are several key points of convergence between decentralization and delegation:

1. Power and Decision-Making: Both concepts involve the transfer of power and decision-making authority from a central authority to lower levels within an organization. Decentralization distributes power across various entities or individuals, while delegation empowers subordinates with decision-making authority within their assigned tasks.

2. Accountability: Both decentralization and delegation involve the delegation of authority and responsibility. In decentralization, accountability is distributed among different entities or levels, while in delegation, accountability is shared between the delegator and the delegatee.

3. Efficiency and Effectiveness: Both concepts aim to enhance efficiency and effectiveness within an organization. Decentralization allows for quicker decision-making and flexibility, as decision-making power is closer to where the information and expertise reside. Delegation enables tasks to be completed more efficiently by empowering individuals with the necessary authority to make decisions and take actions.

4. Empowerment and Development: Both decentralization and delegation contribute to the empowerment and development of individuals within an organization. Decentralization provides opportunities for individuals at lower levels to participate in decision-making, fostering their growth and development. Delegation allows subordinates to develop their skills, experience, and decision-making capabilities through increased responsibility.

Conclusion:
While decentralization and delegation are distinct concepts, they are closely related and often employed together in organizational structures and decision-making processes. Decentralization distributes power and decision-making authority across different levels, while delegation empowers individuals within their assigned tasks. Both concepts contribute to enhanced efficiency, effectiveness, accountability, empowerment, and development within an organization.