Bihar DSO Mains Exam Date 2026: Official Schedule and Important Updates

The Bihar Public Service Commission (BPSC) has released the official Mains examination timetable for the District Statistical Officer (DSO) and Assistant Director (AD) recruitment, conducted under Advertisement No. 38/2025. The written examination is set to take place on 29th and 30th January 2026 across assigned test centers.

Candidates who successfully cleared the preliminary round are advised to carefully examine the shift schedules and subject-specific requirements outlined below. Strategic planning is crucial to maximizing your performance in the upcoming mains assessment.

Bihar DSO Mains Exam Date 2026 Out

The BPSC has confirmed that the Bihar DSO Mains Exam will be conducted from 29 to 30 January 2026. The examination structure consists of three core descriptive papers: General Hindi, General Studies, and Statistics.

Following the conclusion of the mains application process—which ran from 22 November to 12 December 2025—qualified candidates should now prioritize intensive answer-writing practice, syllabus revision, and the review of previous years' question papers to bolster their exam readiness.

Download Your BPSC DSO Mains Admit Card 2026 Here

Bihar DSO Recruitment 2026 – Overview

The BPSC Bihar DSO Recruitment 2026 process involves a multi-stage selection approach, including a Preliminary exam, a Mains written examination, and final document verification, all designed to identify qualified professionals for critical statistical roles.

BPSC DSO Mains Exam Schedule 2026

According to the official exam program, the Mains examination will be conducted in two daily shifts. Please refer to the detailed breakdown of subject-wise papers below.

Important Instructions for Candidates

Adhering to these essential guidelines will help ensure a professional and stress-free experience on your examination day:

• The examination will be conducted at district headquarters examination centres.
• Candidates must report to the examination centre well before the reporting time.
• Admit card, valid photo ID proof, and other instructions mentioned by BPSC must be followed strictly.
• No change in exam date, shift, or centre will be allowed under any circumstances.

BPSC District Statistical Officer Notification 2026 PDF

The BPSC District Statistical Officer Notification 2025 serves as the definitive guide regarding candidate eligibility, selection criteria, and exam structure. It is highly recommended to review the document thoroughly.

You can access the direct download link for the official notification PDF below. Stay proactive, keep track of all BPSC updates, and ensure your preparation remains consistent.

View BPSC District Statistical Officer Official Notification 2025

BPSC District Statistical Officer Vacancy 2025-26

The Bihar Public Service Commission has sanctioned 47 total vacancies for this recruitment, with 16 reserved specifically for women. Please review the detailed category-wise vacancy distribution provided in the table below.

Bihar DSO Mains Application Form Link 2025

The BPSC online application portal for the Bihar DSO Mains Exam 2025 is now closed. Having completed the mandatory application submission stage, all successful preliminary qualifiers must now transition into full-scale examination mode.

With the application phase concluded, your sole focus should be on mastery of the syllabus, rigorous descriptive answer writing, and solving practice papers to excel in the upcoming Bihar DSO Mains Exam 2025-26. Discipline and consistency will remain your greatest assets.

Bihar DSO Application Link 2025 – Closed

Documents Required for Bihar DSO/ Assistant Director Online Form 2025

When applying for the BPSC DSO / Assistant Director position, ensure you have the following essential documents organized and ready for submission:

1. Passport-sized Photograph

   • Recent professional color photograph.

   • Background must be plain white or light-colored.

2. Candidate Signature

   • Legible signature on high-quality white paper.

   • Use only black or blue ink pens.

3. Academic Certificates

   • Master's Degree in Statistics, Mathematics, or Economics from a recognized institution.

   • Degree must be finalized on or before the application deadline.

   • Refer to the official notification for exact qualification criteria.

4. Caste Certificate (If applicable)

   • Required for SC/ST/OBC category verification.

5. Valid ID Proof

   • Aadhaar Card, Voter ID, or any authorized government ID.

6. Domicile Certificate

   • Proof of residency, particularly for Bihar state applicants.

7. Income Certificate (If applicable)

   • Mandatory for candidates claiming EWS (Economically Weaker Section) benefits.

8. Additional Documents (If applicable)

   • Physically Handicapped (PH) Certificate.

   • Ex-servicemen Service Certificate.

   • Any other relevant documentation stipulated by BPSC.

Note: Verify that all scanned documents align with the technical specifications and file size requirements outlined in the official notification.

Bihar DSO Exam Fees

Successful submission of your BPSC District Statistical Officer application requires online fee payment. Applications missing the necessary transaction details will not be processed.

Examination Fee Details:

• SC/ST/Women/Handicapped/Permanent Bihar Residents: Rs. 150/-
• Gen/ OBC/ EWS/ Others: Rs. 600/
• PH Candidates: Rs. 200

BPSC DSO Eligibility Criteria 2026

Prospective applicants should ensure they meet the specific academic and age requirements as defined by the official BPSC guidelines.

Educational Qualification

Requirement: A Master’s Degree in Statistics, Mathematics, or Economics from a recognized university.

Age Limit:

Age limit calculations are effective as of 01 August 2025. Please review the official website to confirm your eligibility based on age criteria.

• Minimum Age: 21 years
• Maximum Age: 37 years
• Maximum Age: 40 (female)

BPSC District Statistical Officer Exam Pattern

Candidates should stay fully updated with the latest exam pattern details for the Bihar DSO and Assistant Director assessment. We have consolidated the core BPSC exam structure here for your reference.

BPSC DSO Selection Process

The selection pathway for the District Statistical Officer (DSO) involves three distinct stages:

1. Preliminary Exam: A 2-hour objective test on General Studies (150 marks). Candidates must score minimum qualifying marks (e.g., 40% for General) to qualify. About ten times the vacancies advance to the Main Exam.
2. Main Exam: Subjective exam with compulsory papers—General Hindi (100 marks, qualifying), General Studies I & II (300 marks each)—plus one optional subject (Economics, Mathematics, or Statistics, 300 marks). Minimum qualifying marks apply.
3. Interview: Conducted for candidates who clear the Main Exam, carrying 120 marks. Approximately 2.5 times the vacancies are called.

The final merit rank is determined by the combined performance in the Main Examination and the subsequent interview.

BPSC District Selection Officer Salary

Successful candidates will earn a competitive salary within the Pay Level-9 bracket (₹53,100 to ₹1,67,800), as stipulated by the 7th Pay Commission. Beyond the base salary, employees receive various government-mandated allowances and benefits, including:

• Dearness Allowance (DA)
• House Rent Allowance (HRA)
• Travel Allowance (TA)
• Other perks and incentives as per Bihar government norms

This attractive salary package makes the Bihar DSO role a premier government career opportunity for the 2025-26 recruitment cycle.