In this guide
- 1. Preparing for an old pattern
- 2. Over-investing in the Optional
- 3. Treating the Essay as an afterthought
- 4. Weak Bihar preparation
- 5. Trusting unverified Bihar GK
- 6. No answer writing before Prelims
- 7. Skipping statistics
- 8. Ignoring General Hindi
- 9. Too many sources, too little revision
- 10. Burning out
- Prelims check: spot the trap
- A self-audit
Every year, lakhs of candidates apply for BPSC, and only a small fraction reach the final list. Effort is rarely what is missing. Most aspirants work hard. What separates success from a near miss is usually a handful of avoidable mistakes, repeated for months.
Read the ten below as a checklist, not a lecture. Most candidates will recognise two or three. Fixing even one can be worth more than another month of reading.
1. Preparing for an old pattern
The BPSC Mains has changed. The Optional is now a qualifying, objective paper of 100 marks, and the Essay carries 300 marks. Merit is decided by GS I, GS II and the Essay (900 marks), plus the interview. Books, videos and advice built for the older pattern, where the Optional carried large merit marks, can quietly pull your hours in the wrong direction.
Instead: read the current notification and syllabus on bpsc.bihar.gov.in, write the pattern on one page, and plan for the exam as it is now.
2. Over-investing in the Optional
Some candidates still spend months on the Optional out of habit, or because a senior did.
Instead: prepare enough to clear it safely, using objective practice, then spend your best hours on GS and the Essay, which decide merit. Our guide to the qualifying Optional shows how much is enough.
3. Treating the Essay as an afterthought
The Essay carries as much as a GS paper. Yet many candidates write their first full essay a month before Mains, and discover that three essays in one sitting is a different sport from writing one answer.
Instead: start early, one essay a fortnight from around the sixth month of preparation and one a week after Prelims. See our guide to the BPSC Essay paper.
4. Weak Bihar preparation
Bihar content runs through Prelims and Mains: history, geography, economy, polity, culture and current affairs.
Instead: build the Bihar layer from the first month, next to the national layer. After every national topic, ask: "What is the Bihar version of this?"
5. Trusting unverified Bihar GK
GK booklets and social media posts often carry wrong dates, confused schemes and outdated numbers, copied from one source to the next. In Prelims, a confident wrong fact costs more than a blank, because negative marking applies.
A few confusions that trap candidates every year:
| Common confusion | Verified version |
|---|---|
| Nalanda and Vikramshila founded by the same dynasty | Nalanda is traditionally linked to the Gupta ruler Kumaragupta I; Vikramshila was founded by the Pala king Dharmapala |
| Bihar formed as a separate state in 1936 | Bihar (with Orissa) was separated from Bengal in 1912; Orissa became a separate province in 1936 |
| Champaran Satyagraha in 1918 | Champaran was 1917; Kheda was 1918 |
| Jharkhand formed in 2001 | Jharkhand was created on 15 November 2000 |
Instead: cross-check important facts against reliable sources: standard history books, the Bihar Economic Survey and official websites. When two sources disagree, note both and find a third.
6. No answer writing before Prelims
The Mains is descriptive, and writing skill takes months to build. Candidates who start after Prelims spend the first month learning how to write, not what to write.
Instead: write three or four answers a week from around the fourth month.
Here is the difference practice makes. Question: "Assess the contribution of Bihar to the Quit India Movement."
| Weak answer | Stronger answer |
|---|---|
| Opens with general lines about Gandhi and 1942 | Opens with the Quit India resolution of 8 August 1942 and the arrests that followed, then turns to Bihar within two lines |
| "Bihar played an important role" with no evidence | The Patna Secretariat firing of 11 August 1942, in which seven students were killed while trying to hoist the national flag |
| No names | Jayaprakash Narayan's escape from Hazaribagh jail in November 1942 and his underground resistance |
| One long paragraph | Subheadings: students, the countryside, underground leaders, repression |
| Ends mid-sentence | Ends with a judgement: Bihar was among the provinces where the movement was most intense |
Model conclusion (two lines): Bihar turned the Quit India call into one of the widest popular risings of 1942, from the students at the Patna Secretariat to the underground network around Jayaprakash Narayan. The repression that followed was severe, but so was the movement's lasting effect on the state's politics.
7. Skipping statistics
GS I includes statistics, graphs and diagrams. It is the one part of the paper where a correct calculation usually earns full marks, yet many humanities candidates skip it out of fear.
The level is modest. Take the yields 12, 15, 9 and 14 quintals per hectare. Mean = 50 ÷ 4 = 12.5. In order (9, 12, 14, 15), the median is (12 + 14) ÷ 2 = 13. If output rises from 400 to 460 units, growth = (460 − 400) ÷ 400 × 100 = 15%.
Instead: two short sessions a week for two months. Our guide to statistics and data in BPSC GS has worked examples and a practice plan.
8. Ignoring General Hindi
It is a qualifying paper (the reported pass mark is 30 per cent), and most candidates clear it. But some, especially English-medium writers, do not, and then their GS and Essay scripts do not count.
Instead: attempt one previous paper early. If you are not comfortably above the mark, follow a short practice plan from our guide to the General Hindi paper.
9. Too many sources, too little revision
Five books per subject, three coaching modules, daily compilations from several websites, and no time to revise any of it.
Instead: one standard source per subject plus your own notes, revised at least three times. A book read three times beats three books read once.
10. Burning out
Long preparation, uncertain calendars and pressure from family and society take a toll.
Instead:
- take a half-day off every week;
- sleep and exercise regularly;
- stay in touch with people outside the preparation bubble;
- have a plan B and a time limit for attempts. It reduces anxiety, not commitment.
Prelims check: spot the trap
Each of these tests a fact that GK booklets often get wrong.
- Vikramshila Mahavihara was founded by:
- (a) Kumaragupta I
- (b) Devapala
- (c) Harshavardhana
- (d) Dharmapala
- The Champaran Satyagraha took place in:
- (a) 1915
- (b) 1917
- (c) 1918
- (d) 1920
- Orissa was separated from Bihar to form a new province in:
- (a) 2000
- (b) 1947
- (c) 1936
- (d) 1912
- The mean of 12, 15, 9 and 14 is:
- (a) 12
- (b) 12.5
- (c) 13
- (d) 13.5
Answers:
- (d) Dharmapala. Devapala was his successor, which is why (b) tempts.
- (b) 1917. Kheda (1918) is the usual distractor.
- (c) 1936. In 1912, Bihar and Orissa together were separated from Bengal.
- (b) 12.5. The sum is 50, divided by 4. The median, 13, is option (c).
A self-audit
| Mistake | Not me | Partly | Definitely |
|---|---|---|---|
| Old pattern | |||
| Over-investing in Optional | |||
| Neglecting the Essay | |||
| Weak Bihar layer | |||
| Unverified facts | |||
| No answer writing | |||
| Skipping statistics | |||
| Ignoring General Hindi | |||
| Too many sources | |||
| Burnout |
Pick the one "definitely" item that would make the biggest difference, and fix it this week. Then come back to the table in a month.
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 .
Get the next BPSC guide by email
New guides every week. No spam, unsubscribe any time.