In this guide
- Why this order
- The five phases
- Your weekly hour budget
- Months 1–3: foundation
- Months 4–6: depth and the Bihar layer
- Months 7–9: consolidation
- Months 10–12: Prelims run-in
- After Prelims: the Mains phase
- After Mains: the interview
- Weekly template (full-time)
- If you are working
- Checkpoints
- A quick self-test
- What to do next
A plan that assumes every day will be perfect is not a plan; it is a wish. What follows is a twelve-month plan for BPSC that builds in revision, testing and rest, so that it survives illness, family events and the odd bad mock. It assumes you are preparing full-time; notes for working aspirants follow.
Count backwards from the notified Prelims date. The months below are "months before Prelims". BPSC's calendar can shift, so check the Commission's calendar and notifications on bpsc.bihar.gov.in and re-anchor the plan whenever a date moves.
Why this order
Three facts about the exam shape the plan.
- Prelims screens; Mains ranks. Prelims is one GS paper of 150 questions with negative marking, and its marks do not count in the final merit. Merit comes from GS I, GS II and the Essay (900) plus the interview (120). So writing has to start long before Prelims.
- Bihar runs through everything. Every GS area has a Bihar layer, so the national and Bihar foundations are built side by side, not one after the other.
- Two qualifying papers can still fail you. General Hindi (30 per cent) and the Optional need small, steady time, not a panic in the last month.
See the BPSC exam pattern guide for the full scheme.
The five phases
- Foundation: NCERTs and the Bihar base.
- Depth and the Bihar layer: standard books; Bihar history, geography, economy and polity.
- Consolidation: remaining topics, Essay practice and sectional tests.
- Prelims run-in: MCQs and revision.
- Mains and interview.
Your weekly hour budget
A full-time week of six study days at eight hours gives 48 hours. Here is one way to spend them in the middle of the year.
| Activity | Hours a week |
|---|---|
| GS subject of the week (national) | 18 |
| Bihar layer | 8 |
| Newspaper and current-affairs notes | 7 |
| Answer writing (including Essay or statistics) | 6 |
| Tests and analysis | 5 |
| Revision of past weeks | 4 |
| Total | 48 |
The seventh day is for rest and planning. Over 48 working weeks (leaving four as buffer), 48 hours a week comes to 2,304 hours. That is plenty, provided the hours go to the right things. Shift the mix by phase: more GS and Bihar early, more tests and revision late.
Months 1–3: foundation
| Subject | National | Bihar |
|---|---|---|
| History | NCERT ancient, medieval, modern | Magadha, Buddhism, Jainism, Mauryas, Guptas, Nalanda |
| Geography | NCERT physical and India | Physiography, rivers, soils of Bihar |
| Polity | NCERT + one standard book | Bihar's government and local bodies |
| Economy | NCERT economics | Comes later |
| Science | NCERT science (Classes 6–10) | — |
Daily: 60–90 minutes of newspapers, a Hindi paper with Bihar coverage and a national paper. For the first month, simply aim to understand what you read.
Weekly: one mental ability session, since BPSC Prelims has no separate CSAT and these questions sit inside the GS paper.
By the end of month 3: you should be able to draw Bihar's main rivers from memory and explain the Constitution's key features without notes.
Months 4–6: depth and the Bihar layer
- Standard books for modern history, polity, economy and geography.
- Bihar modern history: 1857 and Kunwar Singh, the Wahabi movement, tribal revolts, Champaran, Quit India, the Kisan Sabha, the JP Movement.
- Bihar economy: the latest Bihar Economic Survey, the state budget and the key schemes.
- Bihar polity: Panchayati Raj, prohibition, the caste survey, reservation, the right to public services.
- Begin answer writing: three to four answers a week on topics you have finished.
- Begin statistics practice: one session a week.
Months 7–9: consolidation
- Complete remaining topics: science and technology, environment, culture, Bihar's art and languages.
- Essay: one essay a fortnight, rotating through the three sections of the paper.
- Optional: light revision, two to three hours a week.
- General Hindi: one grammar session a week if you write mainly in English.
- Prelims MCQs: sectional tests, with every wrong answer logged.
Months 10–12: Prelims run-in
- No new sources; revise from your own notes.
- Two full-length GS mock tests a week, each followed by analysis.
- Revise Bihar facts: maps, rivers, sites, freedom fighters, schemes.
- Current affairs of the last 12–18 months.
- Keep two or three answers a week going so the writing habit survives.
After Prelims: the Mains phase
| Period | Focus |
|---|---|
| First weeks | Full-length GS I and GS II papers; identify weak areas |
| Middle | Daily answer writing; weekly Essay; statistics drills |
| Final weeks | General Hindi practice papers; Optional MCQs; revision of Bihar examples |
Treat the day after Prelims as day one of Mains. Waiting for the result costs weeks you cannot recover. Our guide to the last 60 days before BPSC Mains breaks this phase down further.
After Mains: the interview
Prepare your application form, your district, Bihar's current issues and the posts you have listed.
Weekly template (full-time)
| Day | Morning (3 h) | Afternoon (3 h) | Evening (2 h) |
|---|---|---|---|
| Mon–Fri | Main subject | Second subject or Bihar layer | Newspaper notes; one answer |
| Sat | Test | Test analysis | Essay or statistics |
| Sun | Weekly revision | Rest | Plan next week |
If you are working
Stretch the plan to 18–24 months:
- weekdays: two to three hours (newspaper plus one subject);
- weekends: six to eight hours (depth, tests, writing);
- take leave before Prelims and Mains if you can.
A working week of 5 × 2.5 hours plus 2 × 7 hours gives 12.5 + 14 = 26.5 hours, a little over half the full-time budget. That is why the timeline roughly doubles. See our guide for working aspirants.
Checkpoints
| When | Check |
|---|---|
| Month 3 | Can you explain the Constitution's key features and Bihar's physiography without notes? |
| Month 6 | Have you written 50 answers and 3 essays? |
| Month 9 | Are sectional scores improving? |
| Month 11 | Are full-length mock scores stable above the likely cut-off? |
If a checkpoint fails, change the approach, not just the hours. Behind on answers? Cut reading time, not writing. Mock scores flat? Spend more time on analysis than on new tests.
A quick self-test
- Which papers decide your written merit?
- From which month should answer writing start?
- A working aspirant studies 2 hours on each of five weekdays and 8 hours on each weekend day. What is the weekly total?
Answers:
- GS I, GS II and the Essay, 900 marks in all.
- Month 4, at three to four answers a week.
- 5 × 2 + 2 × 8 = 10 + 16 = 26 hours.
What to do next
- Find the expected Prelims date and write "month 1" on your calendar.
- Copy the weekly hour budget and adjust it to your real hours.
- Buy or borrow only the month 1–3 books; do not collect the rest yet.
- Fix a Sunday review slot of 15 minutes.
- Mark the four checkpoints on your calendar now.
A note on dates and numbers. Exam patterns, vacancies and schedules change from year to year. Always confirm the current details in the latest notification on the Bihar Public Service Commission website .
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