The Deputy Chief Minister of Bihar is the second highest-ranking member of the state's council of ministers. The current deputy chief ministers of Bihar are Bijendra Prasad Yadav and Vijay Kumar Chaudhary serving in office since 15 April 2026. The position of deputy chief minister is not explicitly defined or mentioned in the Constitution of India. However, the Supreme Court of India has stated that the appointment of deputy chief ministers is not unconstitutional. The court has clarified that a deputy chief minister, for all practical purposes, remains a minister in the council of ministers headed by the chief minister and does not draw a higher salary or perks compared to other ministers.During the absence of the chief minister, the deputy-chief minister may chair cabinet meetings and lead the assembly majority. Various deputy chief ministers have also taken the oath of secrecy in line with the one that chief minister takes. This oath has also sparked controversies.

List Deputy premiers of Bihar Keys:

#Portrait NameTerm of officePremierParty1Anugrah Narayan Sinha20 July 193731 October 1939Shri Krishna SinhaIndian National Congress

Deputy Chief Ministers of Bihar # Portrait Name ConstituencyTerm of officeBihar Deputy CMs ListChief MinisterAssemblyParty 1 Anugrah Narayan Sinha 2 April 1946 5 July 1957 Shri Krishna Sinha1st

(1952) Indian National Congress2nd

(1957) Vacant (5 July 1957 – 5 March 1967) 2 Karpoori Thakur Tajpur 5 March 1967 28 January 1968 Mahamaya Prasad Sinha4th

(1967) Socialist Party 3 Jagdeo Prasad Kurtha 28 January 1968 1 February 1968 Satish Prasad Singh Shoshit Samaj Dal Vacant (1 February 1968 – 3 June 1971) 4 Ram Jaipal Singh Yadav Sonpur 3 June 1971 9 January 1972 Bhola Paswan Shastri5th

(1969) Indian National Congress Vacant (9 January 1972 – 24 November 2005) 5 Sushil Kumar Modi MLC 24 November 2005 16 June 2013 Nitish Kumar14th (2005) Bharatiya Janata Party15th

(2010) Vacant (16 June 2013 – 20 November 2015) 6 Tejashwi Yadav Raghopur 20 November 2015 26 July 2017 16th

(2015) Rashtriya Janata Dal (5) Sushil Kumar Modi MLC 27 July 2017 16 November 2020Bharatiya Janata Party7 Tarkishore Prasad Katihar16 November 20209 August 202217th

(2020) Renu Devi Bettiah(6) Tejashwi YadavRaghopur10 August 202228 January 2024Rashtriya Janata Dal8Samrat Choudhary MLC28 January 202415 April 2026Bharatiya Janata PartyTarapur18th

(2025)Vijay SinhaLakhisarai9Bijendra Prasad YadavSupaul15 April 2026 Incumbent Samrat ChoudharyJanata Dal (United)Vijay Kumar ChaudharySarairanjan

Statistics List by deputy chief minister #Deputy CMPartyTerm of office Longest term Total duration 1 Anugrah Narayan Sinha 11 years, 94 days 11 years, 94 days 2 Sushil Kumar Modi 7 years, 204 days 10 years, 316 days 3 Tejashwi Yadav 1 year, 248 days 3 years, 54 days 4 Samrat Choudhary 2 years, 77 days 2 years, 77 days 5 Vijay Kumar Sinha 2 years, 77 days 2 years, 77 days 6 Tarkishore Prasad 1 year, 266 days 1 year, 266 days 7 Renu Devi 1 year, 266 days 1 year, 266 days 8 Karpoori Thakur 329 days 329 days 9 Ram Jaipal Singh Yadav 220 days 220 days10Bijendra Prasad Yadav* 11Vijay Kumar Chaudhary* 12 Jagdeo Prasad 4 days 4 days

Oath as the state deputy chief minister The deputy chief minister serves five years in the office. The following is the oath of the Deputy chief minister of state: Oath of Secrecy "I, [Name], do swear in the name of God / solemnly affirm that I will not directly or indirectly communicate or reveal to any person or persons any matter which shall be brought under my consideration or shall become known to me as a Minister for the State of [Name of State] except as may be required for the due discharge of my duties as such Minister."Pad ki Shapath (Oath of Office)

See also Bihar Bihar Legislative Assembly

References