GS 4 · Practice archive

GS Paper 4 practice questions for UPSC Mains 2026.

Ethics, Integrity and Aptitude — theory plus case studies.

20 Qs / 250 marks270 questionsModel outlines included

GS Paper 4 · Tips & tricks

GS-4 — values, dilemmas, and decisions — not lectures on ethics

Pair every ethical concept with a public-service application.Talk about integrity — but anchor it to a civil servant scenario or a real official action (T.N. Seshan, E. Sreedharan, Ashok Khemka).
Case studies need a 5-step structure.Identify the dilemma, list stakeholders, lay out 3 options with consequences, choose one with justification, and add a follow-up safeguard.
Use thinkers sparingly and accurately.One Aristotle, one Gandhi, one Ambedkar in an answer is enough — and quote what they actually said, not a paraphrase.
Don't moralise. Decide.The examiner wants a decision and the reasoning. Sitting on the fence loses marks even when the case is morally ambiguous.
For aptitude questions, behaviour matters more than feelings.When asked what you would do, focus on observable actions — communication, consultation, escalation — not internal states.

Q.115 marks · 250w 14 min Hard

You are a probationary IAS officer attached to a Collector who is highly respected in the cadre. During a flagship Aspirational District review, you notice that the data uploaded on the NITI Aayog Champions of Change dashboard for nutrition and sanitation indicators is systematically inflated to keep the district in the ‘top 10’. The Collector, on being asked, says, ‘Numbers will catch up — schemes are running.’ You are weeks away from your probation report being written. Raising the issue may damage your career; staying silent corrupts a national ranking and misdirects ₹50 crore in performance grants. What course of action would you take? Justify with the values involved.

Subtopic: Section B · Case Study · Data integrity vs hierarchical loyalty

Show model answer outline

1. Dilemma: truthful reporting vs hierarchical loyalty + career risk.

2. Stakeholders: NITI Aayog, district citizens (mis-targeted funds), Collector (reputation), probationer (career), DOPT (oversight).

3. Options: (a) say nothing — long-term complicity; (b) escalate informally to Collector with evidence + offer ground-truthing — hard right starts here; (c) if uncorrected in 30 days, formally write to CEO NITI Aayog with copy to Cadre-Controlling Authority — hard right completed.

4. Decision: begin with (b) — private dignified note + offer a ground-truth sample survey; if Collector resists, escalate to (c).

5. Safeguard: keep dated copies of the dashboard, field notes, and correspondence; cite Conduct Rule 3(2)(i) — duty to maintain integrity; seek mentorship from a senior trusted officer.

Key points

All India Services (Conduct) Rules 1968 Rule 3 — integrity, devotion to duty
Mission Karmayogi's Karmayogi competency — domain + behavioural integrity
NITI Aayog dashboard methodology — third-party validation
Aspirational Districts Programme launched January 2018
Hierarchy + dissent — Albert Hirschman's 'voice' before 'exit'
Goleman EI — self-regulation when speaking truth to power

Open full model answer →

Q.215 marks · 250w 14 min Hard

You are the District Magistrate of a district where a private cement plant — the largest local employer — has been releasing fly-ash exceeding CPCB norms. The plant management is influential; the local MLA backs continued production citing 3,000 direct jobs. Your Sub-Divisional Officer’s inspection report confirms the violation; the State Pollution Control Board has issued a closure notice that you must enforce. A delegation of plant workers warns of unrest if the plant closes; environmental NGOs threaten to move the NGT. The Chief Secretary has informally asked you to ‘find a balance’. What course of action would you take? Justify with the values involved.

Subtopic: Section B · Case Study · Environmental compliance vs employment

Show model answer outline

1. Dilemma: public health and rule of law vs livelihood and political pressure.

2. Stakeholders: residents (health), workers (jobs), plant owners (profit), MLA (electoral), CS (administrative comfort), NGT (judicial).

3. Options: (a) ignore the SPCB notice — unethical and unlawful; (b) immediate full closure — humane cost on workers; (c) staged closure with timeline + workers' transition plan — hard right.

4. Decision: Option (c) — enforce SPCB notice with a 30-day public-health emergency order, a 90-day phased compliance plan with bank-guarantee, and a parallel reskilling tie-up.

5. Safeguard: publish all communications under RTI Section 4; record CS's request in note-sheet; involve NGT pro-actively.

Key points

Public health is a non-negotiable constitutional value (Article 21, Subhash Kumar v State of Bihar 1991)
Polluter pays principle (Vellore Citizens Forum 1996)
Rule of law over administrative convenience (Nolan: integrity)
Pre-decisional consultation reduces resistance (procedural justice)
Documentation in note-sheet protects integrity (Khemka precedent)
Sustainable Livelihood approach for affected workers (DAY-NULM convergence)

Open full model answer →

Q.315 marks · 250w 14 min Hard

You are the Joint Secretary in the Ministry of Health overseeing a public-private tender for a new HPV vaccination rollout. During technical evaluation, you discover that the lowest-bidder firm is owned by the brother-in-law of your Minister. The bid is technically compliant; the price advantage is ₹140 crore over the L2 bidder. The procurement officer has cleared the file. The Minister’s PS has ‘reminded’ you that the file is time-sensitive — every week of delay means 2,00,000 unvaccinated adolescent girls. What course of action would you take? Justify with the values involved.

Subtopic: Section B · Case Study · Conflict of interest in procurement

Show model answer outline

1. Dilemma: integrity of process vs urgency of public-health outcome.

2. Stakeholders: adolescent girls (beneficiaries), L2 bidder (fairness), Minister (political), CVC (oversight), public exchequer.

3. Options: (a) clear file silently — unethical; (b) cancel tender outright — delays vaccination; (c) declare conflict in writing, recuse Minister, route through CVO + EFC + EC of Cabinet — hard right.

4. Decision: Option (c) — issue note-sheet declaring conflict, seek CVC advice, request Minister's recusal under the 2014 Conflict of Interest guidelines, and parallel-track an interim small-volume order from L2 to begin coverage.

5. Safeguard: publish award rationale under RTI Section 4; sample independent technical re-validation; routine CAG audit hook.

Key points

Conflict of Interest guidelines for Ministers, DoPT 2014
PCA 1988 Section 7 — undue advantage
GFR 2017 — competitive, transparent tendering; Rule 173
Public interest exception not a defence to procedural breach
CVC's role under Section 8 CVC Act 2003 — vigilance advice
Whistleblower Protection Act 2014 — note-sheet trail as protection

Open full model answer →

Q.415 marks · 250w 14 min Hard

You are SP of a border district where a senior IPS officer — your batchmate’s husband — is rumoured to be receiving cash from a cattle-smuggling syndicate. A constable from your wing brings a covert recording that strongly suggests the rumour is true, but the recording was made without authorisation under the Telegraph Act. Going public will trigger an inquiry that may end the senior officer’s career, expose your constable to retaliation, and strain your spouse’s friendship. Burying the recording protects your peace but enables ongoing smuggling and the loss of a constable killed last month in a related ambush. What course of action would you take? Justify with the values involved.

Subtopic: Section B · Case Study · Whistleblowing in police service

Show model answer outline

1. Dilemma: personal loyalty vs institutional integrity; tainted evidence vs duty to act.

2. Stakeholders: public (safety), dead constable's family (justice), accused IPS officer (due process), informant constable (protection), spouse-friendship (personal).

3. Options: (a) destroy recording — moral complicity in murder cover-up; (b) leak to media — sensationalist, unfair; (c) submit recording with explanatory note to State Vigilance Commissioner and copy CVC, seek lawful interception of fresh evidence — hard right.

4. Decision: Option (c) — file confidential report with SVC; request State to constitute SIT; protect informant under WBP Act; recuse self from any investigation.

5. Safeguard: document all communications; brief the DGP in writing; counsel the constable on whistleblower protection; accept personal cost as duty.

Key points

Whistleblower Protection Act 2014 — identity protection
Indian Evidence Act 1872 Section 65B + Telegraph Act 1885 — admissibility of intercepts
All India Services (Conduct) Rules 1968 Rule 3 — integrity
Vineet Narain 1997 — duty to investigate without favour
Khemka precedent — documentation as armour
Conscience as ultimate source (Aristotle phronesis)

Open full model answer →

Q.515 marks · 250w 14 min Hard

You are a Joint Director in CBI. A team led by an ASP shows you internal evidence — interception logs, financial trails — that a sitting Member of Parliament’s Personal Secretary has been receiving regular payments from an arms-broker. The MP himself is not directly implicated yet. The case is sensitive; the MP belongs to the ruling alliance. Your Director hints that ‘we should wait for the joint inquiry committee’. The ASP is willing to file a Preliminary Enquiry, but only on your written nod. The case file may leak. What course of action would you take? Justify with the values involved.

Subtopic: Section B · Case Study · Whistleblowing — political sensitivity in investigation

Show model answer outline

1. Dilemma: investigation duty under PCA vs hierarchical caution and political fallout risk.

2. Stakeholders: citizens, MP-PS (accused), MP (potential), Director, ASP, judiciary.

3. Options: (a) defer to Director's hint — duty-breach; (b) authorise PE quietly without process — open to manipulation; (c) authorise the PE in writing, follow CBI Manual procedure, secure file in CBI HQ vault, brief CVC under Section 8 CVC Act — hard right.

4. Decision: Option (c) — written authorisation; CVC concurrent reporting; statutory secrecy on file; preserve interception authorisations.

5. Safeguard: chain-of-custody log; sealed evidence vault; protect ASP and team; periodic court-monitoring if needed.

Key points

Vineet Narain 1997 — investigation insulation; Single Directive struck
CBI Manual Chapter 9 — Preliminary Enquiry
PCA 1988 Section 7 and 13 — public servant offences
CVC Act 2003 Section 8 — superintendence
Telegraph Act 1885 + IT Act 2000 — interception authorisations
Subramanian Swamy v Director CBI 2014 — equal treatment in investigation

Open full model answer →