Doctrine of Pleasure:
The doctrine of pleasure has its origins in English law. In England, the moral rule is that a civil servant of the Crown holds office during the pleasure of the Crown. This means his services can be terminated at any time by the Crown, without assigning any reason.
Article 311 of Indian constitution:
No person who is a member of a civil service of the Union or an all-India service or a civil service of a State or holds a civil post under the Union or a State shall be dismissed or removed by an authority subordinate to that by which he was appointed.