The UPSC Civil Services Prelims 2026 General Studies Paper 1 stands out as a balanced yet highly competitive test of an aspirant’s analytical depth and conceptual clarity. This part of the exam features an intricate mix of administrative ethics case studies, constitutional law interpretations, and international relations.

To simplify your self-evaluation and guide your immediate strategy for the Mains examination, the core faculty panel at IAS Coaching Delhi has developed this thorough, verified UPSC Prelims 2026 GS Paper 1 Answer Key covering Questions 51 to 75.

Part 1: Key Sectional Highlights & Weightage Analysis

Understanding the structural distribution of questions 51 to 75 provides critical insights into the shifting trends of civil services testing.

Detailed Question-by-Question Solutions & Explanations (Q51–75)

Q51. Senior officer Mr. X and vaccine distribution quality control

• Correct Answer: (c)

• Subject Category: Public Administration & Ethics (GS Paper 4 / Applied Polity)

• Nature of the Question: Applied Case Study

• Why the Correct Option is Right:

  Mr. X reported the quality compromise to the appropriate vigilance authority and halted the contract. This directly reflects the principle of Accountability—the obligation of public administrators to report, explain, and be answerable for the consequences of decisions, ensuring public welfare over vested interests.

• Why Other Options are Wrong:

  Esprit de corps refers to team spirit and institutional loyalty; Equity means fairness and impartiality in treating people; Delegation is the act of assigning authority downward to subordinates. None of these align with exposing a contract violation.

• UPSC Learning Insight:

  In case studies involving structural fraud or compromise on public safety, the action of reporting to vigilance authorities and halting the transaction is a direct validation of administrative accountability.

Q52. Conflict resolution over waste management facility near a tribal hamlet

• Correct Answer: (a)

• Subject Category: Governance & Conflict Resolution

• Nature of the Question: Multi-Statement Mediation Analysis

• Why the Correct Option is Right:

  • Statement 1 is correct: Acknowledging cultural and sacred concerns builds trust and is the first step in democratic mediation.

  • Statement 3 is correct: Multi-stakeholder platforms are standard mechanisms for democratic de-escalation.

  • Statement 4 is correct: Conducting an independent ESIA provides an objective, evidence-based framework for negotiation.

• Why Other Options are Wrong:

  • Statement 2 is incorrect: Moving ahead blindly without delaying the project violates tribal rights, environmental norms, and escalates civil unrest. This eliminates options (b), (c), and (d).

• UPSC Learning Insight:

  UPSC governance scenarios penalize one-sided bureaucratic high-handedness. Balanced solutions must always value environmental protocols, native rights, and systematic assessments.

Q53. Ms. X and confidential corruption allegations against a shortlisted contractor

• Correct Answer: (c)

• Subject Category: Ethics & Public Accountability

• Nature of the Question: Ethical Dilemma & Administrative Action

• Why the Correct Option is Right:

  • Statement 2 is correct: Recommending the removal or a formal review of the contractor protectively guards institutional integrity based on serious internal alerts.

  • Statement 3 is correct: Proposing “limited disclosure” to an official institutional oversight committee balances transparency with official discretion, allowing internal scrutiny without causing premature public alarm.

• Why Other Options are Wrong:

  • Statement 1 is incorrect: Immediately disclosing unproven, confidential information directly to the public violates official confidentiality protocols and could lead to defamation or institutional embarrassment before a legal basis is established.

• UPSC Learning Insight:

  Whistleblowing and transparency are core values, but they must follow administrative channels first when facts are unproven, rather than bypassing systems straight to public leakage.

Q54. Meaning of ‘Law’ under Article 13 of Part III of the Constitution

• Correct Answer: (d)

• Subject Category: Indian Polity (Fundamental Rights)

• Nature of the Question: Textual Constitutional Interpretation

• Why the Correct Option is Right:

  Article 13(3)(a) explicitly defines “law” to include any Ordinance, order, bye-law, rule, regulation, notification, custom or usage having in the territory of India the force of law. Therefore, Y is correct that custom is included under Article 13.

• Why Other Options are Wrong:

  X was wrong to assume custom is non-inclusive, which automatically invalidates choices (a) and (c). Since Y is right, choice (b) is also incorrect.

• UPSC Learning Insight:

  Ensure a word-for-word memorization of critical definitions within Article 12 and Article 13 of the Constitution. UPSC routinely tests the semantic boundaries of these terms.

Q55. Chronology, Nomenclature, and Repeal Articles in the Constitution

• Correct Answer: (b)

• Subject Category: Indian Polity (Miscellaneous Provisions)

• Nature of the Question: Direct Conceptual Fact-Checking

• Why the Correct Option is Right:

  There is no correct statement because all three statements claim “There is no Article…”, whereas the Indian Constitution explicitly covers these aspects in its final chapters.

• Why Other Options are Wrong:

  • Statement 1 is incorrect: Article 393 explicitly specifies: “This Constitution may be called the Constitution of India.”

  • Statement 2 is incorrect: Article 395 explicitly states that the Indian Independence Act, 1947, and the Government of India Act, 1935, stand repealed.

  • Statement 3 is incorrect: Article 394 explicitly mentions 26th January 1950 as the date of commencement of the Constitution.

• UPSC Learning Insight:

  Aspirants often ignore the very last articles of the Constitution (Articles 393–395). This question shows that the non-glamorous, foundational provisions are fair game for testing.

Q56. Provisions for Persons with Disabilities (PwDs) in India

• Correct Answer: (b)

• Subject Category: Social Justice & Government Schemes

• Nature of the Question: Statutory Fact Analysis

• Why the Correct Option is Right:

  Statement 2 is correct because the Sugamya Bharat Abhiyan (Accessible India Campaign) targets 3 distinct pillars: Built Environment, Transportation, and ICT ecosystems.

• Why Other Options are Wrong:

  • Statement 1 is incorrect: The Rights of Persons with Disabilities Act was passed in 2016 (not 2018).

  • Statement 3 is incorrect: The National Divyangjan Finance and Development Corporation (NDFDC) operates under the Ministry of Social Justice and Empowerment, not the Ministry of Corporate Affairs.

• UPSC Learning Insight:

  UPSC frequently alters the year of major acts or switches the controlling ministries of corporations to test precision. Always verify the nodal ministry for social corporations.

Q57. Constitutional Provisions pertaining to SCs and STs

• Correct Answer: (a)

• Subject Category: Indian Polity (Schedules & Protections)

• Nature of the Question: Applied Constitutional Exceptions

• Why the Correct Option is Right:

  • Statement 2 is correct: Under Section 10(26) of the Income Tax Act, members of Scheduled Groups residing in specific tribal areas (like 6th Schedule areas or states like Nagaland, Manipur, etc.) are exempt from income tax on local sources.

  • Statement 3 is correct: Article 243D explicitly mandates the reservation of seats for SC/ST women within the broader 33% Panchayat reservation frameworks.

• Why Other Options are Wrong:

  • Statement 1 is incorrect: Administration of Tribal Areas in Assam, Meghalaya, Tripura, and Mizoram (AMTM) is covered under the Sixth Schedule, not the Fifth Schedule. This eliminates choices (b) and (d).

• UPSC Learning Insight:

  Understanding the specific legal benefits extended to tribal populations—such as income tax exemptions in tribal zones—is essential for answering advanced policy questions.

Q58. Types of Parliamentary Questions

• Correct Answer: (c)

• Subject Category: Indian Polity (Parliamentary Proceedings)

• Nature of the Question: Procedural Rules Comparison

• Why the Correct Option is Right:

  Statement 3 is correct because unstarred questions receive written replies, meaning no immediate oral supplementary questions can follow them on the floor of the House.

• Why Other Options are Wrong:

  • Statement 1 is incorrect: Unstarred questions require a written answer.

  • Statement 2 is incorrect: Starred questions require an oral answer. The question text inverted these two definitions, making choices (a) and (b) false.

• UPSC Learning Insight:

  Procedural tools of Parliament, including the difference between starred, unstarred, and short-notice questions, are standard topics that require precise focus.

Q59. Committee on the Welfare of Scheduled Castes and Scheduled Groups

• Correct Answer: (d)

• Subject Category: Indian Polity (Parliamentary Committees)

• Nature of the Question: Functional Fact Check

• Why the Correct Option is Right:

  There is no correct statement listed among the options. All four statements contain intentionally modified facts regarding the structure of the committee.

• Why Other Options are Wrong:

  • Statement 1 is false: The Chairperson is appointed by the Speaker of the Lok Sabha (not the Rajya Sabha Chairman).

  • Statement 2 is false: It consists of 30 members—20 from Lok Sabha and 10 from Rajya Sabha (the text inverted this ratio).

  • Statement 3 is false: No Minister can be elected to this committee at all.

  • Statement 4 is false: The term of office of the committee members is one year, not two years.

• UPSC Learning Insight:

  Financial and welfare committees have uniform restrictions regarding Ministers. Ministers cannot be members, and terms are generally limited to one year.

Q60. Mission Sudarshan Chakra of India

• Correct Answer: (b)

• Subject Category: Science & Technology / Defence Current Affairs

• Nature of the Question: Strategic Defence Initiatives

• Why the Correct Option is Right:

  • Statements 1 and 2 are correct: Envisioned as India’s integrated defensive-offensive AI-networked security architecture, Mission Sudarshan Chakra unifies aerospace, cyber, and military command networks to counter modern ballistic/aerial vectors.

• Why Other Options are Wrong:

  • Statement 3 is incorrect: It is a strategic national military defence initiative designed by DRDO to safeguard critical military/civilian grid frameworks and borders, not a public surveillance policy to “cover all public places” with a civilian shield by 2035.

• UPSC Learning Insight:

  Be skeptical of statements that include extreme timelines or overly broad public mandates (like covering “all public places” by a specific year) for strategic military programs.

Q61. International River Bridges of India

• Correct Answer: (d)

• Subject Category: Geography & International Relations

• Nature of the Question: Border Infrastructure Mapping

• Why the Correct Option is Right:

  Statement 3 is correct because the Mechi Bridge handles transport directly over the Mechi River connecting Panitanki (West Bengal, India) to Kakarvitta (Nepal).

• Why Other Options are Wrong:

  • Statement 1 is incorrect: The Maitri Setu over the Feni River connects Sabroom in Tripura (India) with Ramgarh in Bangladesh (The text reversed the domestic locations).

  • Statement 2 is incorrect: The Jhulaghat suspension bridge connects India with Nepal (over the Kali River), not Myanmar.

• UPSC Learning Insight:

  Bilateral connectivity infrastructure along border regions is highly tested. Pay close attention to exactly which border state connects with which neighboring country.

Q62. Zero First Information Report (Zero FIR) under BNSS, 2023

• Correct Answer: (c)

• Subject Category: Polity & Legal Reforms

• Nature of the Question: Structural Legal Update

• Why the Correct Option is Right:

  Statement 1 is correct because Section 173 of the Bharatiya Nagarik Suraksha Sanhita (BNSS) explicitly allows the registration of a Zero FIR at any police station irrespective of the territorial jurisdiction of the crime.

• Why Other Options are Wrong:

  • Statement 2 is incorrect: A Zero FIR must be transferred immediately to the jurisdictional police station; the receiving station transfers it without waiting for separate administrative permissions to conduct preliminary local inquiries.

  • Statement 3 is incorrect: While BNSS permits electronic information filing, it is not an obligatory mandatory condition for the informant; standard oral representations remain valid.

• UPSC Learning Insight:

  When new foundational codes replace old criminal procedures (like BNSS replacing CrPC), focus on key administrative changes like FIR registrations.

Q63. Match: Organisations, Functions, and Controlling Ministries

• Correct Answer: (a)

• Subject Category: Governance & Statutory Bodies

• Nature of the Question: Matrix Match Evaluation

• Why the Correct Option is Right:

  Only Row 3 is correctly matched. The Central Bureau of Investigation (CBI) operates under the Ministry of Personnel, Public Grievances and Pensions.

• Why Other Options are Wrong:

  • Row 1 is incorrect: The Central Economic Intelligence Bureau (CEIB) coordinates economic intelligence under the Ministry of Finance (Department of Revenue), not the Ministry of Home Affairs.

  • Row 2 is incorrect: The Serious Fraud Investigation Office (SFIO) is under the Ministry of Corporate Affairs, not the Ministry of Finance.

• UPSC Learning Insight:

  Economic enforcement agencies are split across Finance, Corporate Affairs, and Home Affairs. Make a clear table of these bodies to study their divisions.

Q64. International Conventions NOT Ratified by India

• Correct Answer: (d)

• Subject Category: International Relations & Human Rights

• Nature of the Question: Global Treaty Ratification

• Why the Correct Option is Right:

  India has not ratified the Migrant Workers Convention (3), the Geneva Convention Relative to the Protection of Civilian Persons in Time of War (4), and the Convention on the Reduction of Statelessness (5).

• Why Other Options are Wrong:

  India has ratified both the ILO Employment Policy Convention (1) and the Abolition of Forced Labour Convention (2) (Ratified in 2000), eliminating options (a) and (b).

• UPSC Learning Insight:

  Global conventions on human rights, labor, and statelessness require careful study regarding India’s status as a signatory versus its actual ratification.

Q65. AI Impact Summit 2026, New Delhi

• Correct Answer: (d)

• Subject Category: Current Affairs / Science & Tech Policy

• Nature of the Question: Contemporary Summit Frameworks

• Why the Correct Option is Right:

  Statement 3 is correct because the New Delhi Declaration on AI Impact was organized across seven thematic “Chakras” including Access for Social Empowerment, Secure and Trusted AI, and AI for Science.

• Why Other Options are Wrong:

  • Statement 1 is incorrect: The summit’s intellectual framework was anchored around the three foundational Sutras of People, Planet, and Progress (not Planning).

  • Statement 2 is incorrect: While democratizing resources is key, the charter acts as a cooperative platform and declaration mechanism rather than a legally binding global structural treaty.

• UPSC Learning Insight:

  For major international declarations hosted in India, watch for subtle word variations (like Planet vs. Planning) introduced in option choices.

Q66. Connectivity Projects between India and ASEAN

• Correct Answer: (a)

• Subject Category: International Relations

• Nature of the Question: Geopolitical Infrastructure Analysis

• Why the Correct Option is Right:

  The Kaladan Multi-Modal Project (1) and India-Myanmar-Thailand (IMT) Trilateral Highway (2) are foundational infrastructure initiatives connecting India with ASEAN states via Myanmar.

• Why Other Options are Wrong:

  The Agartala-Akhaura Rail Line (3) is a bilateral project connecting India with Bangladesh, which is not an ASEAN member. This eliminates choices (b), (c), and (d).

• UPSC Learning Insight:

  Always double-check the geographic grouping of nations in regional questions. Mixing South Asian bilateral projects with Southeast Asian frameworks is a common test option.

Q67. Indian-Supported Bilateral Development Projects

• Correct Answer: (b)

• Subject Category: International Relations / India’s Neighborhood First

• Nature of the Question: List Matrix Match

• Why the Correct Option is Right:

  The correct matching sequence is:

  • A. Mangdechhu Hydroelectric Project $\rightarrow$ 3. Bhutan

  • B. Restoration of Stor Palace $\rightarrow$ 2. Afghanistan

  • C. District Hospital at Dickoya $\rightarrow$ 4. Sri Lanka

  • D. Institute of Security and Law Enforcement Studies $\rightarrow$ 1. Maldives

• Why Other Options are Wrong:

  Other codes misalign these well-established development assistance projects with the wrong neighboring countries.

• UPSC Learning Insight:

  India’s lines of credit and developmental aid in neighboring countries are key aspects of neighborhood diplomacy. Track infrastructure footprints across SAARC nations.

Q68. Defence Hardware Manufactured in India

• Correct Answer: (a)

• Subject Category: S&T / Defence Indigenization

• Nature of the Question: Manufacturing Status Verification

• Why the Correct Option is Right:

  • Statement 1 is true: The Su-30 MKI fighter jets are license-manufactured in India by Hindustan Aeronautics Limited (HAL).

  • Statement 2 is true: The T-90 Bhishma/MK-III tanks are manufactured locally at the Heavy Vehicles Factory (HVF) Avadi.

• Why Other Options are Wrong:

  • Statement 3 is false: The Akula-class nuclear submarine is leased from Russia; it is not manufactured indigenously within Indian shipyards. This eliminates choices (b) and (c).

• UPSC Learning Insight:

  Be sure to distinguish between items that are manufactured under license in domestic facilities versus platforms that are imported or leased from foreign strategic partners.

Q69. Platforms for Multilateral Migration Co-operation

• Correct Answer: (c)

• Subject Category: International Forums & Agreements

• Nature of the Question: Institutional Mandates Comparison

• Why the Correct Option is Right:

  Both the Abu Dhabi Dialogue (2) and the Global Forum for Migration and Development (GFMD) (3) are structured explicitly as voluntary, non-binding consultative setups.

• Why Other Options are Wrong:

  • Statement 1 is incorrect: The Colombo Process is a regional consultative forum, but its declarations and decisions are non-binding recommendations, not binding consensus protocols.

• UPSC Learning Insight:

  Most global consultative processes concerning migrant labor and demographic flows operate on a voluntary, non-binding framework. True binding treaties are rare in this domain.

Q70. UN Organisations Awarded the Nobel Prize Twice

• Correct Answer: (a)

• Subject Category: International Bodies / General Knowledge Focus

• Nature of the Question: Historical Institutional Milestones

• Why the Correct Option is Right:

  Out of the listed organizations, only the United Nations High Commissioner for Refugees (UNHCR) has been awarded the Nobel Peace Prize twice (in 1954 and 1981).

• Why Other Options are Wrong:

  UNICEF (1965), ILO (1969), and WFP (2020) have each won the Nobel Peace Prize only once in their institutional history.

• UPSC Learning Insight:

  While specific award questions are less common, major institutional milestones for prominent UN organs are worth reviewing.

Q71. UN Peacekeeping Operations and Operational Periods

• Correct Answer: (b)

• Subject Category: International Relations History

• Nature of the Question: Timeline Matrix Match

• Why the Correct Option is Right:

  The historical durations match as follows:

  • A. UNMIL (Liberia) $\rightarrow$ 3. 2003 – 2018

  • B. MINURCAT (Chad/CAR) $\rightarrow$ 1. 2007 – 2010

  • C. MINUSTAH (Haiti) $\rightarrow$ 4. 2004 – 2017

  • D. UNMISET (East Timor) $\rightarrow$ 2. 2002 – 2005

• Why Other Options are Wrong:

  Other option combinations incorrectly align these closed UN peacekeeping operations with their respective active timelines.

• UPSC Learning Insight:

  India’s substantial contributions to UN Peacekeeping missions mean that major past and current global operations remain a focus area for international relations questions.

Q72. BIMSTEC Centres and Host Locations

• Correct Answer: (a)

• Subject Category: Regional Groupings

• Nature of the Question: Institutional Geography Match

• Why the Correct Option is Right:

  The official institutional layout for BIMSTEC centers maps as follows:

  • A. BIMSTEC Cultural Industries Observatory $\rightarrow$ 3. Colombo (Sri Lanka)

  • B. BIMSTEC Energy Centre $\rightarrow$ 2. Bengaluru (India)

  • C. BIMSTEC Centre for Weather and Climate $\rightarrow$ 1. NOIDA (India)

  • D. BIMSTEC Technology Transfer Facility $\rightarrow$ 4. Thimphu (Bhutan)

• Why Other Options are Wrong:

  Other choices misalign the functional divisions with their correct host locations across the member countries.

• UPSC Learning Insight:

  When regional groupings like BIMSTEC or SAARC setup specialized centers, keep an updated list of which specific Indian cities (like Noida or Bengaluru) host them.

Q73. Incorrectly Matched Indian Army Corps Headquarters

• Correct Answer: (d)

• Subject Category: Internal Security / Defence Geography

• Nature of the Question: Identification of Inversion Match

• Why the Correct Option is Right:

  The 33 Corps of the Indian Army is headquartered at Sukna (Siliguri, West Bengal), not Srinagar. The corps handling Kashmir valley operations is the 15 Corps (headquartered at Srinagar).

• Why Other Options are Wrong:

  The operational bases for 3 Corps (Dimapur), 4 Corps (Tezpur), and 14 Corps (Leh) are correctly matched.

• UPSC Learning Insight:

  Security mapping requires familiarity with the geographic command layers of the armed forces along border corridors.

Q74. Revamped Rashtriya Gram Swaraj Abhiyan (RGSA)

• Correct Answer: (a)

• Subject Category: Government Schemes & Rural Governance

• Nature of the Question: Scheme Provision Analysis

• Why the Correct Option is Right:

  • Statement 1 is correct: The revamped RGSA was extended for implementation from 2021-22 to 31.03.2026.

  • Statement 2 is correct: The central focus is empowering PRIs to achieve localization of Sustainable Development Goals (LSDGs).

• Why Other Options are Wrong:

  • Statement 3 is incorrect: The scheme is a Centrally Sponsored Scheme where funding is shared (typically 60:40 for standard states, 90:10 for NE/Hills), not 100% centrally funded across all states.

• UPSC Learning Insight:

  Distinguishing between Centrally Sponsored Schemes (shared funding) and Central Sector Schemes (100% Union funding) is a foundational step in studying public policy.

Q75. Member Countries of the European Union (EU)

• Correct Answer: (c)

• Subject Category: International Mapping & Geography

• Nature of the Question: Block Membership Checklist

• Why the Correct Option is Right:

  Poland (2) and Germany (3) are official member states of the European Union.

• Why Other Options are Wrong:

  Belarus and Switzerland are European nations but are not members of the EU. This rules out choices (a), (b), and (d).

• UPSC Learning Insight:

  Continental location does not equate to trade block membership. Knowing European nations that maintain independent statuses (like Switzerland) helps avoid common mapping errors.

Part 3: Strategic Takeaways & Cut-Off Predictions

The final section of the 2026 paper highlights the importance of moving away from rote memorization. Success on this test requires a deep understanding of core concepts and an ability to link current events with static syllabus topics.

Our preliminary faculty analysis suggests that standard cut-off marks will align with historical averages, reflecting the analytical challenge of the question options.

Next Step for Mains Preparation: If your calculated score falls within the safe zone, we recommend shifting your focus immediately to GS Papers 1–4 answer writing and structural essay formulations.