Updated: 11 September 2026 — The IBPS RRB Office Assistant Prelims 2026 are scheduled for 6 December, 12 December and 13 December 2026 under CRP-RRBs-XV. Candidates should also note that the current online registration window runs from 1 September to 21 September 2026. This article explains what the official schedule means, how the Office Assistant selection route works, what to prepare for the Preliminary Examination, and which dates you should keep on your calendar.
The Institute of Banking Personnel Selection has listed CRP-RRBs-XV as a current recruitment cycle, with the Office Assistant (Multipurpose) recruitment handled separately from the Officer Scale I, II and III recruitment. IBPS’s 2026–27 calendar gives the Office Assistant Preliminary Examination dates as 6, 12 and 13 December 2026 and the Main Examination as 30 January 2027. The detailed notification remains the controlling source for eligibility, vacancies, examination rules and other conditions.

IBPS RRB Office Assistant Prelims 2026: important dates
The most important date for a new applicant is the application closing date: 21 September 2026. The IBPS registration portal also lists 21 September as the closing date for editing application details and the last date for online fee payment. The last date for printing the submitted application is 5 October 2026.
| Event | Date |
|---|---|
| Online registration begins | 1 September 2026 |
| Last date to apply | 21 September 2026 |
| Last date for editing application details | 21 September 2026 |
| Online fee payment | 1–21 September 2026 |
| Last date for printing application | 5 October 2026 |
| Office Assistant Preliminary Examination | 6, 12 and 13 December 2026 |
| Office Assistant Main Examination | 30 January 2027 |
These dates should be treated as the current official schedule, but candidates should continue checking IBPS for call-letter releases, centre information, corrigenda and any later change. IBPS’s calendar itself notes that examination dates can be changed for administrative or other stated reasons.
What is the IBPS RRB Office Assistant selection process?
For Office Assistant (Multipurpose), the recruitment route is different from Officer Scale I. Candidates first take the Preliminary Examination and, if they qualify under the applicable rules, proceed to the Main Examination. There is no interview stage for the Office Assistant post in the same way there is for the officer recruitment route.
This distinction is important because candidates sometimes carry the Officer Scale I selection pattern into their Office Assistant preparation. Our detailed IBPS RRB Office Assistant Exam Pattern 2026 guide covers the section structure and timing in greater detail.
IBPS RRB Office Assistant Prelims pattern
The Preliminary Examination focuses on two areas: Reasoning and Numerical Ability. The paper is objective and separately timed. Candidates therefore need two different skills: solving questions correctly and managing the section clock without allowing one difficult problem to consume too much time.
| Section | Questions | Marks | Time |
|---|---|---|---|
| Reasoning | 40 | 40 | 20 minutes |
| Numerical Ability | 40 | 40 | 20 minutes |
| Total | 80 | 80 | 40 minutes |
The practical consequence of sectional timing is simple: you should practise the same way you will be tested. A candidate who spends six or seven minutes on one puzzle may leave too little time for otherwise easy questions. Mock tests should therefore be reviewed not only for marks but also for question selection and time allocation.

Reasoning: what to practise before the prelims
Reasoning preparation should be divided into quick-scoring questions and longer sets. Start with topics where you can build accuracy quickly, such as inequalities, syllogism, coding-decoding, direction sense, blood relations, alphanumeric series and simple analogy or classification questions. Then add seating arrangement and puzzle practice.
The goal is not to solve every puzzle. It is to identify which questions are worth your time. During a mock, mark the questions that look lengthy before committing to them. If the first few steps of a puzzle do not produce a clear path, move to another question and return only if time remains.
Numerical Ability: build speed without sacrificing accuracy
Numerical Ability is where calculation speed can make a major difference. Revise percentages, ratio and proportion, averages, profit and loss, simple and compound interest, time and work, time and distance, simplification, approximation, number series and data interpretation. The exact distribution can vary, so preparation should cover the notified syllabus rather than depend on a predicted question count.
Practise calculations separately from full mocks. Short daily drills for multiplication, division, fractions, percentages and approximation can reduce the time spent on routine arithmetic. Once accuracy is stable, introduce a strict 20-minute sectional timer.
How to prepare between now and December
Phase 1: build the basics
Use the first stage of preparation to cover the full Reasoning and Numerical Ability syllabus. Do not rush into full-length mocks before you understand the common question types. Keep a notebook of recurring mistakes and formulas that you repeatedly forget.
Phase 2: introduce sectional tests
Once the basics are comfortable, take separate 20-minute Reasoning and Numerical Ability tests. Track three numbers after each test: attempted, correct and incorrect. The most useful improvement is often a reduction in avoidable errors rather than a dramatic increase in attempts.
Phase 3: full prelims mocks
In the final preparation period, use complete 40-minute mocks. Recreate the sectional timing instead of taking an unrestricted 40-minute test. After every mock, classify errors into concept mistakes, calculation mistakes, reading mistakes and poor question selection. Each category requires a different fix.
Do not confuse the prelims date with the main-exam date
The current IBPS calendar separates the two stages clearly. Office Assistant Preliminary Examination dates are 6, 12 and 13 December 2026, while the Main Examination is scheduled for 30 January 2027. A candidate who is preparing for the prelims should therefore already have a broad Main Examination plan in the background rather than waiting until after the prelims result.
The Main Examination has a broader syllabus and becomes important for final merit. That makes the December prelims a gateway rather than the end of the selection process.
Application checklist for CRP-RRBs-XV
- Confirm that your educational qualification and age meet the current notification.
- Use the official IBPS application portal rather than an unofficial application link.
- Check the photograph, signature, thumb impression and handwritten declaration requirements before uploading files.
- Review every application field before final submission.
- Complete online fee payment within the registration window.
- Keep the submitted application and payment record available for future reference.
- Check IBPS regularly for call letters, centre details, corrigenda and updated notices.
For age-specific eligibility, see our IBPS RRB Office Assistant Age Limit 2026 guide. For the wider recruitment overview, see IBPS RRB Recruitment 2026. Candidates comparing pay can also read the IBPS RRB Office Assistant Salary 2026 guide.
Frequently Asked Questions
When is the IBPS RRB Office Assistant Prelims 2026?
The Preliminary Examination is scheduled for 6 December, 12 December and 13 December 2026.
When does IBPS RRB Office Assistant registration close?
The current registration window closes on 21 September 2026. The same date is listed for application-detail editing and online fee payment.
When is the IBPS RRB Office Assistant Main Exam 2026?
The IBPS 2026–27 calendar schedules the Office Assistant Main Examination for 30 January 2027.
How many questions are in the Office Assistant prelims?
The Preliminary Examination has 80 objective questions: 40 Reasoning questions and 40 Numerical Ability questions, with a total of 80 marks and a 40-minute overall test duration under the standard pattern.
Is there sectional timing in the IBPS RRB Office Assistant prelims?
Yes. The standard pattern gives 20 minutes to Reasoning and 20 minutes to Numerical Ability. Candidates should practise with the same sectional limits.
Where should I check for the latest IBPS RRB update?
Use the official IBPS website and the official CRP-RRBs-XV application portal. The official Rural Banks XV page currently lists the September 2026 corrigendum and updated-vacancy notice, so candidates should not rely only on older recruitment summaries.
Final takeaway
The key IBPS RRB Office Assistant Prelims 2026 dates are now clear: registration is open from 1 September to 21 September, the Preliminary Examination is scheduled for 6, 12 and 13 December, and the Main Examination is scheduled for 30 January 2027. The strongest preparation plan is to combine syllabus coverage with timed Reasoning and Numerical Ability practice, then move into full prelims mocks well before December.
Official sources: IBPS Regional Rural Banks XV, IBPS 2026–27 Calendar, and the official Office Assistant application portal. The official IBPS notification and any subsequent corrigendum should be treated as controlling where details change.