Bihar Judicial Services aspirants who treat Prelims and Mains as two separate worlds end up doing double the work for half the marks. The truth your seniors won’t always spell out: roughly 55-60% of your Mains writing comes from topics you already crammed for Prelims — if you study them the right way the first time. With BPSC 33rd Judicial Services notification active for 173 Civil Judge posts and the new criminal codes (BNS, BNSS, BSA, 2023) now firmly inside the syllabus, the cost of inefficient prep is higher than ever. This handout maps 12 crossover themes that show up in both stages, gives you the exact angle each stage tests, and ends with a 5-question MCQ drill. Read it as a planning document, not a list.
Why “crossover topics” are the single most important idea in BJS planning
The BPSC Bihar Judicial Services examination has three stages — Prelims (1,150 marks across 9 papers, MCQ format, qualifying cut-off only), Mains (1,000 marks across 6 written papers), and Viva (100 marks). Most candidates plan Prelims with bare-act memorisation and then panic in September when Mains writing demands conceptual depth and judgment recall. The smart approach is to identify subjects that appear in both syllabi, study them once with the Mains-depth lens, and then trim down for Prelims-style MCQ recall in the final 30 days. The 12 themes below are the ones the 33rd notification’s syllabus and the last five PYQ cycles confirm as recurring in both stages.
Theme 1: Constitutional Law — Fundamental Rights, Articles 14-32
Prelims tests bare article numbers, landmark cases by single-line ratio, and exceptions (reasonable restrictions under 19(2)-(6), procedure established by law under 21). Mains demands a structured essay: definition, scope, evolution through Maneka Gandhi, Puttaswamy, and the 2025 climate-rights expansion under Article 21. Build a single 40-page handwritten note that you can read in two hours before Prelims and that contains all the case ratios you’ll cite in Mains. Don’t make two sets of notes.
Theme 2: Code of Civil Procedure (CPC) — Orders I to XXII
CPC is the single highest-yielding paper across both stages. Prelims will ask Order numbers, section numbers, and procedural sequences (e.g., what is Order VII Rule 11; difference between revision under Section 115 and review under Section 114). Mains will hand you a 200-word problem fact pattern and ask you to draft the application. Master Orders I (parties), VII (plaint), VIII (written statement), IX (ex-parte), XX (judgment), XXI (execution), XXXIX (injunctions) — these seven Orders alone account for more than 60% of all CPC questions across BJS papers.
Theme 3: BNSS, 2023 (replacing CrPC) — investigation to trial
The Bharatiya Nagarik Suraksha Sanhita is the highest-velocity topic for BJS 2026. Prelims will test section-to-section mapping with the old CrPC, custody timelines (the new 60-day phased custody window), digital FIR provisions, and zero FIR jurisdiction. Mains will test full procedural narratives — write the steps from FIR to chargesheet, framing of charge, summons-warrant case distinction, and trial of warrant cases by Magistrates. Keep a side-by-side BNSS-vs-CrPC table. The first 200 sections deserve full bare-act treatment.
Theme 4: BNS, 2023 (replacing IPC) — General Principles and key offences
Prelims has historically loved Chapter IV (General Exceptions — Sections 14-44 of IPC equivalent in BNS), abetment, criminal conspiracy, and offences affecting human body. The BNS retains most IPC concepts but renumbers them; section-shifting questions are inevitable. Mains demands knowledge of the new community service punishment, terrorism definition under BNS, organised crime sections, and offences against women (which the BNS has restructured). Don’t waste energy comparing every section — focus on the 40 sections where definition or punishment has actually changed.
Theme 5: BSA, 2023 (replacing Indian Evidence Act) — relevancy and burden
The Bharatiya Sakshya Adhiniyam is leaner than IEA but retains its analytical bite. Prelims tests Sections 5-55 (relevancy), Section 65B-equivalent provisions for electronic records (now substantially modernised), presumptions, and burden of proof. Mains gives you a fact pattern: who proves what, admissibility of confessions, dying declarations, expert opinion. Memorise the seven exceptions to hearsay and the rules for character evidence in civil vs criminal cases.
Theme 6: Indian Contract Act, 1872 — Sections 1 to 75
Pure overlap subject. Prelims drills offer-acceptance-consideration, free consent, void/voidable distinction, and quasi-contracts (Sections 68-72). Mains writes an essay on doctrine of frustration (Section 56), specific performance interplay with the Specific Relief Act, 1963, and damages under Section 73 with Hadley v. Baxendale. The Contract Act is the easiest 100-marker in Mains for candidates who already did it for Prelims — treat it that way.
Theme 7: Transfer of Property Act, 1882 — Sections 1-137
TPA’s case-law density makes it the highest-difficulty paper for most BJS candidates. Prelims will pinpoint definitions of sale (Section 54), mortgage (Section 58 with all six kinds), lease vs licence, gift (Section 122), and the rule against perpetuity (Section 14). Mains expects drafting-aware answers: distinguish English mortgage from usufructuary, explain doctrine of part performance (Section 53A) with its Registration Act linkage. The same 90 sections power both stages.
Theme 8: Specific Relief Act, 1963 (as amended in 2018)
Post-2018 amendment, this Act has changed from a discretionary remedy framework to a mandatory specific performance regime in contracts of an immoveable nature. Prelims tests the amendment’s specifics — Section 14 (when specific performance is barred), Section 16 (personal bars), injunctions (Sections 36-42). Mains asks you to compare pre-2018 and post-2018 positions and apply them to a fact pattern. This is a 50-marker subject that takes 15 hours to master.
Theme 9: Hindu Law — Marriage, Succession, Adoption
Personal law has historically carried 30-40 marks in Prelims and a full optional paper option in Mains. Prelims targets the Hindu Marriage Act, 1955 (grounds for divorce under Section 13, void/voidable distinction under Sections 11-12), Hindu Succession Act, 1956 (post-2005 daughter’s coparcenary rights), and Hindu Adoption and Maintenance Act, 1956. Mains drills on coparcenary partition, Mitakshara vs Dayabhaga reasoning, and the 2020 Vineeta Sharma judgment confirming retrospective daughter’s rights.
Theme 10: Muslim Law — Marriage, Dower, Divorce, Inheritance
Often under-prepared by candidates from non-personal-law backgrounds. Prelims tests classification of marriage (sahih, fasid, batil), kinds of dower, modes of divorce (post-Shayara Bano position on triple talaq), and basic inheritance distribution. Mains expects you to explain the difference between Sunni and Shia inheritance, the doctrine of aul and radd, and waqf principles. Six hours of focused study covers 90% of all questions.
Theme 11: Law of Torts (with Motor Vehicles Act)
BJS pairs torts with the Motor Vehicles Act, 1988 (now amended in 2019). Prelims targets general defences (volenti non fit injuria, act of God, statutory authority), vicarious liability, nuisance, and negligence. Mains pulls in MV Act claims — calculation of compensation, multiplier method, no-fault liability under Section 163A, and the modern Sarla Verma structure for income computation. Treat torts and MV Act as one unit.
Theme 12: Constitutional Law of India — Federalism, Emergency, Amendments
This is the “macro” half of constitutional law (Theme 1 was the rights half). Prelims tests Articles 245-263 (Centre-State relations), Articles 352-360 (emergency provisions), and the procedure under Article 368. Mains wants reasoned essays: the basic structure doctrine post-Kesavananda Bharati, the 2024 position on the President’s Reference power, and the limits of judicial review of constitutional amendments. The 2025 Supreme Court tribunal-independence ruling fits here too — read its ratio twice.
How to actually use this list — a 60-day plan
Allocate days 1-30 to the depth-first Mains lens. For each of the 12 themes, sit with the bare act, an unbroken three-hour block, and a single notebook. Read, summarise into a single page, and add one paragraph capturing the leading case ratios. Days 31-50 are pure MCQ drilling — solve at least 100 MCQs per theme using BPSC PYQ banks and trusted mock series. Days 51-60 are revision-only — no new material. The objective is to ensure that by exam morning each theme triggers an automatic mental tree: definition → exceptions → leading case → procedural quirk.
If you’re enrolling in our test-series or want our internal subject-wise PYQ packs, see the resources linked below.
Internal resources to deepen each theme
- Judiciary Gurukul Blog — full archive of subject deep-dives
- Judiciary Gurukul Home — courses, test series, and free study material
- Contact our faculty for one-on-one BJS mentorship
Frequently Asked Questions
Q1. How much of the BJS Prelims syllabus actually overlaps with Mains?
Empirically, around 55-60% of Mains writing draws on subjects you already studied for Prelims — Constitutional Law, CPC, BNS/BNSS/BSA, Contract Act, TPA, Specific Relief Act, Hindu and Muslim Law, and Law of Torts all appear in both stages. The depth differs (MCQ recall vs essay drafting) but the source material is identical.
Q2. Should I prepare for Prelims and Mains together or sequentially?
Together, with a Mains-first lens. Studying a topic for Mains depth automatically covers Prelims breadth, but the reverse is rarely true. Bare-act mugging without conceptual scaffolding leaves you unable to write a 250-word answer in October. Plan 70% of your time on the 12 crossover themes and 30% on Prelims-only papers like General Knowledge, Hindi, English, and Elementary Science.
Q3. Which of the 12 themes is highest-yielding for the 33rd BJS exam?
Code of Civil Procedure (Theme 2) and the three new criminal codes (Themes 3-5) together account for nearly 40% of Mains marks. CPC alone is a 150-mark paper. Master these four themes first; the remaining eight are tier-two priorities.
Q4. How do I revise the BNS, BNSS, and BSA when the bare acts are still new?
Build a three-column comparison sheet: section number in the new code, equivalent section in the old code, and a one-line summary of any substantive change. Most sections are renumbered without substantive change, so flagging the 30-40 genuinely new provisions saves you days of confused study. Solve at least 500 MCQs on the new codes before Prelims.
Q5. Do I need to memorise every landmark judgment for Mains?
No. Memorise the ratio (one sentence) and the year for the top 80-100 judgments across constitutional law, CPC, criminal codes, and personal laws. Examiners reward correct case-name use with accurate ratio more than long quotations. The 2025 Supreme Court verdicts on tribunal independence, climate-as-fundamental-right, and the All India Judges Association practice-experience clarification are this year’s must-knows.
5-Question Drill — test yourself before closing this page
- Under the Bharatiya Nagarik Suraksha Sanhita, 2023, the maximum period of police custody during initial investigation may extend, in phases, up to:
(a) 15 days continuous
(b) 30 days continuous
(c) 60 days in phases
(d) 90 days in phases
Answer: (c) — BNSS expands phased police custody to 60 days for offences punishable with imprisonment of 10 years or more. - Order VII Rule 11 of the Code of Civil Procedure, 1908, deals with:
(a) Return of plaint
(b) Rejection of plaint
(c) Amendment of plaint
(d) Striking out pleadings
Answer: (b) — Order VII Rule 11 lists the seven grounds for rejection of plaint, including lack of cause of action and undervaluation. - The doctrine of part performance under Section 53A of the Transfer of Property Act, 1882, requires:
(a) A registered instrument transferring immoveable property
(b) A written contract signed by the transferor, possession taken, and part performance done by the transferee
(c) Only oral agreement followed by possession
(d) Court permission before transfer
Answer: (b) — Section 53A protects a transferee who has, in part performance of a written contract, taken possession and done acts in furtherance thereof. - The Supreme Court in May 2025, in All India Judges Association v. Union of India, held that the minimum legal practice required to apply for Civil Judge (Junior Division) is:
(a) One year
(b) Two years
(c) Three years
(d) No minimum requirement
Answer: (c) — The 2025 ruling restored the three-year practice requirement; serving judicial officers with three years of service are exempted per the November 2025 clarification. - Under the Hindu Succession (Amendment) Act, 2005, a daughter’s right to be a coparcener in joint family property is:
(a) Prospective from 2005 only
(b) Available only if father was alive on 9 September 2005
(c) Retrospective irrespective of father’s date of death (per Vineeta Sharma, 2020)
(d) Limited to one-third share
Answer: (c) — Vineeta Sharma v. Rakesh Sharma (2020) held the daughter’s coparcenary right is by birth and operates regardless of whether the father was alive on the amendment date.
Final word: BJS is a planning examination as much as a content examination. If you treat the 12 crossover themes above as your spine, you’ve cut the genuine workload by roughly 40%. Use the saved hours for answer-writing practice, not more reading.
