He cites personal reasons for relinquishing high-profile position Former Cabinet Secretary and Principal Advisor in the Prime Minister’s Office (PMO) P.K. Sinha has relinquished his high-profile position on personal grounds. Top sources in the government have confirmed the development to The Hindu. Except confirmation about his exit, there was no other communication from the government. He was appointed in the PMO first as Officer on Special Duty (OSD) briefly and then as Principal Advisor, a specially created position for him, in September 2019 after the 2019 parliamentary polls. Earlier, he was Secretary, Ministry of Power in the government of India and served as Cabinet Secretary for four years from 2015.