A Chief Minister is the elected head of government of each of Twenty nine states and seven union territories (Delhi and Pondicherry). 

Head of the State at the State Level: Chief Minister

The head of the state at the state level is the Chief Minister. Let's understand why this is the correct answer.

1. Definition of Head of the State:
The head of the state refers to the highest-ranking official who represents the state and exercises executive power. They are responsible for governing the state and ensuring the smooth functioning of the government.

2. Role of Chief Minister:
a) The Chief Minister is the elected head of the state government. They are chosen by the members of the legislative assembly (MLAs) or by the majority party in the assembly.
b) The Chief Minister is responsible for implementing government policies, managing the administration, and overseeing the day-to-day functions of the state.
c) They lead the state executive branch and are accountable for the governance, development, and welfare of the state.
d) The Chief Minister is the principal advisor to the Governor on the appointment of various officials, including ministers and other executive officers.
e) They represent the state government in interactions with the central government and other states.

3. Speaker of Vidhan Sabha:
a) The Speaker of Vidhan Sabha, also known as the Legislative Assembly, is not the head of the state.
b) The Speaker is responsible for conducting the proceedings of the assembly, maintaining decorum, and ensuring fair debates.
c) They are elected by the members of the assembly and are politically neutral in their conduct.

4. Governor:
a) The Governor is the constitutional head of the state, representing the President of India at the state level.
b) They are appointed by the President and serve as the ceremonial head of the state.
c) The Governor acts as the representative of the central government and ensures the state government functions within the framework of the constitution.
d) While the Governor holds significant powers, including the power to dissolve the state assembly, they do not serve as the head of the state government.

5. Mayor:
a) The Mayor is the head of the municipal corporation or local self-government at the city level.
b) They are responsible for the administration and governance of the city, focusing on local issues and development.
c) However, the Mayor does not hold the position of the head of the state.

In conclusion, the Chief Minister is called the head of the state at the state level. They are elected by the legislative assembly, responsible for the governance of the state, and serve as the principal advisor to the Governor.

Governor is head of state and cheif minster is head of government