- Hon’ble Governor’s Secretariat
- Chief Minister’s Office
- Hon’ble CM’s Secretariat
- Dy. Chief Minister’s Office
- Agriculture
- Animal & Fish Resources
- BC & EBC Welfare
- Building Construction
- Cabinet Secretariat
- Commercial Taxes
- Co-operative
- Disaster Management
- Education
- Energy
- Environment & Forest
- Excise & Prohibition
- Finance
- Food & Consumer Protection
- General Administration
- Health
- Home Department
- Industry
- Information & Public Relations
- Information Technology
- Labour Resources
- Law
- Mines & Geology
- Minor Water Resources
- Minority Welfare
- Parliamentary Affairs
- Panchayati Raj
- Public Health Engineering
- Planning
- Registration, Excise & Prohibition
- Revenue & Land Reforms
- Road Construction
- Rural Development
- Rural Works
- Science & Technology
- SC & ST Welfare
- Social Welfare
- Sugarcane
- Transport
- Tourism
- Urban Development
- Vigilance
- Water Resources
- Youth, Art & Culture
- Bihar Police
- Arwal Police Office
- Gopalganj Police Office
- Motihari Police Office
- Patna Office
- Supaul Police Office
- Bihar Co-operative Bank, Patna
- Bihar Commission for Backward Classes
- Bihar Electricity Regulatory Commission
- Bihar Foundation
- Bihar Industrial Area Development (BIADA)
- Bihar Infrastructure Mapping
- Bihar Institute of Public Administration
- Bihar Mahadalit Vikas Mission
- Bihar Medical Services & Infra. Corp Ltd.
- Bihar Prashasnik Sudhar Mission
- Bihar Public Service Commission
- Bihar Rajya Pul Nirman Nigam
- Bihar Rajya Beej Nigam Ltd
- Bihar School Examination Board
- Bihar State Aids Control Society
- Bihar State Building Construction Corp Ltd.
- Bihar State Credit & Investment Corp Ltd.
- Bihar State Election Authority (BSEA)
- Bihar State Finance Corporation
- Bihar State Housing Board
- Bihar State Minorities Financial Corp.
- Bihar State Pollution Control Board
- Bihar State Power Holding Company Ltd.
- Bihar State Road Development Corp. Ltd.
- Bihar State Seed Certification Agency
- Bihar State Sports Authority
- Bihar Staff Selection Commission
- Bihar State Tourism Development Corp.
- Bihar Tuberculosis Association, Patna
- Bharat Wagon & Engineering Co. Ltd.
- BELTRON
- Bihar Urban Infra. Dev. Corp. (BUIDCo)
- Board of Revenue
- Central Excise, Bihar
- Central Excise – e-Auction, Patna
- Central Ground Water Board, Patna
- Central Selection Board of Constables
- Controller of Communication Accounts
- COMPFED – Sudha, Pride of Bihar
- District Health Society, Patna
- Directorate of Employment & Training
- Directorate of Rice Development
- Economics & Statistics Directorate
- Flood Management Information System
- Ganga Flood Control Commission
- Indian Red Cross Society, Patna
- Integrated Child Development Services
- Land Development Bank
- Patna Medical College & Hospital
- Patna Municipal Corporation
- Patna Regional Development Authority
- Railway Recruitment Board, Patna
- Railway Recruitment Cell, Patna
- Railway Recruitment Board, Muzaffarpur
- Small Industries Services Institute
- State Board of Technical Education
- State Election Commission, Bihar
- State Finance Commission, Bihar
- State Health Society, Bihar
- State Horticulture Mission, Bihar
- State Govt. Tenders
- Uttar Bihar Gramin Bank, Muzaffarpur
- Bihar State Information Commission
- Lokayukta, Bihar
- Bihar Human Rights Commission
- Consumer Protection, Govt. of India
Constitutional Bodies Websites
- Darbhanga Division, Darbhanga
- Koshi Division, Saharsa
- Purnea Division
- Saran Division
- Patna Division, Patna
- Tirhut Division, Muzaffarpur
- Araria
- Arwal
- Aurangabad
- Banka
- Begusarai
- Bhagalpur
- Bhojpur
- Buxar
- Darbhanga
- East Champaran
- Gaya
- Gopalganj
- Jamui
- Jehanabad
- Kaimur
- Khagaria
- Katihar
- Kishanganj
- Lakhisarai
- Madhubani
- Madhepura
- Muzaffarpur
- Munger
- Nalanda
- Nawada
- Patna
- Purnea
- Rohtas
- Saharsa
- Saran
- Samastipur
- Sheohar
- Sheikhpura
- Sitamarhi
- Siwan
- Supaul
- Vaishali
- West Champaran
- A.N.Sinha Institute of Social Studies
- Aryabhatta Knowledge University, Patna
- B.A.M.E.T.I., Patna
- Bhagalpur College of Engineering
- Bihar National College, Patna
- B.M.T. Law College (Autonomous), Purnea
- B.R.Ambedkar Bihar Univ, Muzaffarpur
- Chanakya National Law University, Patna
- Chandragupta Institute of Mgmt, Patna
- College of Arts & Crafts, Patna University
- DNS Regional Institute of Co-op Mgmt
- Jai Prakash Vishwavidyalaya, Chapra
- K.S. Darbhanga Sanskrit Vishwavidyalaya
- Lalit Narayan Mithila University, Darbhanga
- L. N. Mishra Institute, Patna
- Magadh University, Bodh Gaya
- Muzaffarpur Institute of Technology
- Nalanda Open University, Patna
- National Institute of Technology, Patna
- Patna Law College, Patna
- Patna University, Patna
- Rajendra Agriculture University, Pusa