Arun Kumar Sinha is an Indian Administrative Service (IAS) officer of the 1999 batch from the Manipur cadre, a Direct Recruit (DR) entrant via the UPSC Civil Services Examination. Officer identity: 01MN017800. Currently posted as Principal Secretary, Forest & Environment and Climate Change/Works, Manipur since 15-09-2025. Career to date: 17 documented postings, 9 distinct locations, 27 years of service. Educational qualification on file: B.Tech.(Chem. Engg). Pay Level 15 in the IAS Pay Matrix; home state Bihar. Profile compiled from the Department of Personnel & Training (DoPT) IAS Civil List and Executive Record Sheet, as published on the public portal.