Sources said Nripendra Mishra, Principal Secretary to the Prime Minister expressed his intention to be relieved of his assignment. They said Prime Minister has requested him to continue for two weeks. The Prime Minister has also appointed PK Sinha (retired IAS officer) as Officer on Special Duty in the PMO.

from Times of India https://timesofindia.indiatimes.com/india/pm-modis-principal-secretary-nripendra-misra-to-step-down/articleshow/70911204.cms