Article 310 of CoI : Article 310: Tenure of office of persons serving the Union or a State.

Explanation using Example

Example 1:

Rajesh is an officer in the Indian Administrative Service (IAS), which is an all-India service. He has been serving diligently in the state of Maharashtra. According to Article 310, Rajesh holds his office during the pleasure of the Governor of Maharashtra. This means that his tenure is not fixed and he can be removed from his position by the Governor at any time, without any specific reason, as long as it is not arbitrary or in violation of any constitutional provisions.

Example 2:

Meera is a scientist working with the Defence Research and Development Organisation (DRDO), which is a part of the Union's defence services. Her position is under the pleasure of the President of India. This implies that her tenure is subject to the President's discretion. If the President decides that her services are no longer required, she can be removed from her position. However, if Meera had a special contract due to her unique qualifications, and her post is abolished before the contract period ends, she may be entitled to compensation as per the terms of her contract, provided her removal is not due to any misconduct on her part.