Explanation:

 The similarities between Chief Secretary and Cabinet Secretary are:

1. Both are chief coordinators of their respective administrations.

2. Both are chief advisors to their respective Chief Executives.

3. Both are heads of their respective civil services boards.

4. Both are administrative heads to their respective secretariats

5. Both supervise the implementation of the decisions of the respective cabinets.

The differences between the Chief Secretary and Cabinet Secretary are:

• All those functions which are not specifically allotted to any other Secretary or Additional Chief Secretary, fall within Chief Secretary’s direct functional jurisdiction. But at the Central level, Principal Secretary to the Prime Minister has the Residual powers.

• The Cabinet Secretary is primus inter pares (first among equals) among the Secretaries, but the Chief Secretary is the head of all Secretaries (including Additional Chief Secretaries and Principal Secretaries)

• The Cabinet Secretary has no ministerial or departmental responsibilities, while a Chief Secretary may be the administrative head of a few departments like Planning, Personnel etc

. • As per the emergent conventions, the Cabinet Secretary has a fixed tenure of minimum two years, but such stipulation is not applicable in the case of the Chief Secretary.

• The powers and functions of the Chief Secretary are wider and more intense than those of the Cabinet Secretary