The Security Council of UN consists of 5 permanent members, and the remaining 10 members are elected by the General Assembly for a term of

1. The UN Charter and Principal Organs (basic)

To understand the United Nations, we must look at its birth. Established in 1945 immediately after the devastation of the Second World War, the UN was designed to succeed where the League of Nations had failed Contemporary World Politics, Textbook in political science for Class XII (NCERT 2025 ed.), International Organisations, p.51. Its foundation is the UN Charter, a document signed by 51 original member states that sets out the rights and obligations of members and establishes the organization's organs and procedures. The Charter's primary objectives are to prevent international conflict, facilitate cooperation, and uphold the sovereignty and territorial integrity of all nations History, class XII (Tamilnadu state board 2024 ed.), Reconstruction of Post-colonial India, p.111.

The UN operates through six principal organs, each with a distinct role in global governance. While the General Assembly acts as the main deliberative body, the Security Council holds the primary responsibility for maintaining international peace and security History, class XII (Tamilnadu state board 2024 ed.), The World after World War II, p.252. The Security Council consists of 15 members: five permanent members (with veto power) and ten non-permanent members. These non-permanent members are elected by the General Assembly for a two-year term. To maintain continuity while ensuring rotation, these terms are staggered so that five members are elected every year, and a retiring member is not eligible for immediate re-election Contemporary World Politics, Textbook in political science for Class XII (NCERT 2025 ed.), International Organisations, p.54.

Principal Organ	Primary Function
General Assembly	The "town hall" of the world; all members have one vote.
Security Council	Responsible for international peace and security.
Economic and Social Council (ECOSOC)	Coordinates the economic and social work of the UN.
Secretariat	The administrative arm, led by the Secretary-General.
International Court of Justice (ICJ)	The principal judicial organ (based in The Hague).
Trusteeship Council	Established to manage trust territories (currently inactive).

Beyond these organs, the UN system extends its reach through specialized agencies like the WHO, UNESCO, and UNICEF, which tackle specific global challenges ranging from public health to children's rights Contemporary World Politics, Textbook in political science for Class XII (NCERT 2025 ed.), International Organisations, p.50.

Sources: Contemporary World Politics, Textbook in political science for Class XII (NCERT 2025 ed.), International Organisations, p.50, 51, 54; History, class XII (Tamilnadu state board 2024 ed.), The World after World War II, p.252; History, class XII (Tamilnadu state board 2024 ed.), Reconstruction of Post-colonial India, p.111

2. The UN General Assembly (UNGA): The Deliberative Body (basic)

The United Nations General Assembly (UNGA) is often described as the 'Parliament of Nations' or the 'Town Hall of the World.' It is the primary deliberative organ of the UN where all member states have equal representation. Unlike the Security Council, which has a restricted membership, every single member of the United Nations is a member of the General Assembly. This embodies the democratic principle of 'one person, one vote, one value,' ensuring that a small island nation has the same voting power as a global superpower in this forum Democratic Politics-I, Chapter 1, p.6.

While the UNGA does not have the power to enforce its decisions with military force, it serves as the ultimate platform for international discussion. It discusses any matter within the scope of the UN Charter, including international peace, security, and human rights. However, its resolutions are generally recommendatory (non-binding) rather than mandatory. One of its most critical functions is its role in the 'check and balance' of the UN system; for instance, the General Assembly elects the ten non-permanent members of the Security Council for a two-year term Contemporary World Politics, Chapter 4, p.54. It also approves the UN budget and appoints the Secretary-General based on the recommendation of the Security Council.

Historically, the General Assembly has been the voice of the developing world. In 1992, the UNGA adopted a significant resolution highlighting that the Security Council no longer reflected contemporary political realities and lacked equitable representation Contemporary World Politics, Chapter 4, p.52. Because the UNGA is the only body where all 193 member states are represented, it remains the most legitimate and inclusive organ for debating global challenges, from climate change to poverty alleviation.

Feature	UN General Assembly (UNGA)	UN Security Council (UNSC)
Membership	All 193 Member States	15 Members (5 Permanent, 10 Non-permanent)
Voting	One State, One Vote	Veto power for Permanent 5 (P5)
Nature of Decisions	Mainly Recommendations (Non-binding)	Binding Resolutions (Enforceable)

Sources: Democratic Politics-I, What is Democracy? Why Democracy?, p.6; Contemporary World Politics, International Organisations, p.52; Contemporary World Politics, International Organisations, p.54

3. Other Pillars: ECOSOC and the ICJ (intermediate)

While the Security Council manages global peace and security, the Economic and Social Council (ECOSOC) serves as the UN’s primary body for coordination, policy review, and recommendation on economic, social, and environmental issues. It is essentially the "engine room" for global development. ECOSOC consists of 54 members who are elected by the General Assembly for staggered three-year terms. This body is crucial because it oversees the vast network of specialized agencies, such as the WHO, UNESCO, and the IMF, ensuring that international efforts to combat poverty or climate change are not fragmented. In the broader landscape of international organizations, ECOSOC acts as the central link between the UN's high-level mandates and the specialized work of functional commissions Contemporary World Politics, NCERT (2025 ed.), Chapter 4, p.54.

The International Court of Justice (ICJ), often referred to as the "World Court," is the principal judicial organ of the United Nations. It is unique among the six principal organs because it is the only one not located in New York City; instead, it sits at the Peace Palace in The Hague, Netherlands. The Court is composed of 15 judges elected to nine-year terms by the General Assembly and the Security Council. The ICJ performs two vital functions: settling legal disputes submitted to it by sovereign states (contentious jurisdiction) and providing advisory opinions on legal questions referred to it by authorized UN organs and agencies.

To understand the ICJ's authority, it is helpful to contrast it with domestic legal systems. For instance, just as the Supreme Court of India is the highest court of appeal within the territory of India D. D. Basu, Introduction to the Constitution of India, THE SUPREME COURT, p.348, the ICJ is the highest judicial authority between nations. However, a key difference exists: while a domestic court's jurisdiction is mandatory over its citizens, the ICJ's jurisdiction in contentious cases generally requires the consent of the states involved. It does not try individuals for war crimes (that is the role of the International Criminal Court, a separate entity), but rather resolves disagreements between countries over treaties, boundaries, and international law.

Sources: Contemporary World Politics, NCERT (2025 ed.), International Organisations, p.54; Introduction to the Constitution of India, D. D. Basu (26th ed.), THE SUPREME COURT, p.348

4. Global Power Dynamics: The Veto Power and P5 (intermediate)

To understand the UN Security Council (UNSC), we must first look at its architecture, which is divided into two distinct tiers: the Permanent Five (P5) and the ten non-permanent members. This structure was designed after World War II to ensure that the world's major powers remained invested in the UN's success, thereby providing global stability. The P5—comprising the United States, Russia, the United Kingdom, France, and China—hold a unique "privileged position" characterized by two main features: permanency and the Veto Power Contemporary World Politics, Chapter 4, p.54.

The Veto Power is essentially a negative power. When the Security Council makes a decision on a substantive matter, all five permanent members must concur (or at least not object). If even one P5 member casts a "no" vote, the resolution fails, regardless of how many other members support it. This mechanism allows a single great power to stop any move it finds damaging to its interests or those of its allies. For instance, the United States often uses its veto to protect its strategic interests, a power further amplified by its role as the UN's largest financial contributor and host nation Contemporary World Politics, Chapter 4, p.59-60.

In contrast, the ten non-permanent members are elected by the General Assembly for two-year terms. To ensure a degree of continuity while maintaining regular rotation, these terms are staggered—meaning five new members are elected every year. A crucial rule to remember is that a retiring member cannot be re-elected immediately after completing their two-year stint; they must wait for at least one year before serving again. This prevents any single nation from dominating the non-permanent seats Contemporary World Politics, Chapter 4, p.54.

Feature	Permanent Members (P5)	Non-Permanent Members
Number	5 (Fixed)	10 (Elected)
Term	Indefinite	2 Years (Staggered)
Veto Power	Yes	No
Immediate Re-election	N/A	Not permitted

Sources: Contemporary World Politics, Chapter 4: International Organisations, p.54; Contemporary World Politics, Chapter 4: International Organisations, p.59; Contemporary World Politics, Chapter 4: International Organisations, p.60

5. UN Reform Debates and India's Aspirations (exam-level)

The debate over United Nations reform is essentially a struggle to align a mid-20th-century organization with 21st-century realities. Since the UN's inception in 1945, the global balance of power has shifted dramatically. The most contentious area of reform is the UN Security Council (UNSC), which currently consists of five permanent members (P5) with veto power and ten non-permanent members. These non-permanent members are elected by the General Assembly for staggered two-year terms, and they are not eligible for immediate re-election, ensuring a rotation that allows different nations to participate Contemporary World Politics, Textbook in political science for Class XII (NCERT 2025 ed.), Chapter 4, p. 54.

India’s aspiration for a permanent seat in the UNSC is built on a robust foundation of objective criteria. As the world’s most populous democracy and a rapidly growing economy, India argues that its exclusion undermines the Council's legitimacy. Beyond its size, India is one of the largest troop contributors to UN Peacekeeping missions globally, demonstrating a long-standing commitment to international security Geography of India, India–Political Aspects, p. 58. This aspiration isn't merely about prestige; a permanent seat carries immense symbolic importance, signaling a nation's influence and enhancing its weight in the conduct of foreign policy Contemporary World Politics, Chapter 4, p. 58.

However, the path to reform faces significant hurdles. India's bid is supported by many but also faces skepticism. For instance, the "G4" nations (India, Japan, Germany, and Brazil) support each other’s bids for permanent seats, but they are opposed by the "Uniting for Consensus" group (often called the Coffee Club), which prefers expanding only non-permanent seats to prevent creating new centers of power. Some countries also raise concerns regarding India’s nuclear capabilities or its regional tensions with neighbors like Pakistan, which remains a vocal critic of India's permanent membership Contemporary World Politics, Chapter 4, p. 58.

Feature	Permanent Members (P5)	Non-Permanent Members (E10)
Term Length	Indefinite	2 Years (Staggered)
Veto Power	Yes	No
Selection	Named in UN Charter	Elected by General Assembly

Sources: Contemporary World Politics, Textbook in political science for Class XII (NCERT 2025 ed.), International Organisations, p.54, 58; Geography of India, India–Political Aspects, p.58

6. UNSC Composition and Regional Representation (intermediate)

The United Nations Security Council (UNSC) serves as the executive arm of the UN, primarily responsible for maintaining international peace and security. To balance power and representation, the Council is composed of 15 members divided into two distinct categories: the Permanent Five (P5) and the ten non-permanent members.

The P5 members—the United States, Russia, the United Kingdom, France, and China—were granted a privileged status following World War II to ensure global stability. Their primary privileges include permanency and the veto power, which allows any one of them to block a substantive resolution, regardless of how much international support it has Contemporary World Politics, International Organisations, p.54. While all members have one vote, the veto ensures that the Council cannot take action without the consensus (or at least the lack of active opposition) of the world's major powers Contemporary World Politics, International Organisations, p.55.

In contrast, the ten non-permanent members are elected by the General Assembly to ensure that the Council reflects the world's geographical diversity. These members serve for a term of two years. To ensure a regular rotation and prevent any single nation from dominating a non-permanent seat, the UN Charter stipulates that a retiring member cannot be re-elected immediately after completing their two-year term Contemporary World Politics, International Organisations, p.54.

Feature	Permanent Members (P5)	Non-Permanent Members (E10)
Number of Seats	5	10
Tenure	Permanent	2 Years
Veto Power	Yes	No
Immediate Re-election	Not Applicable	Not Allowed

To keep the Council functional and representative, the election of these ten members is staggered so that five members are elected every year. Beyond just geography, proposed criteria for future membership often include a nation's economic power, military strength, and its contribution to the UN budget or peacekeeping missions Contemporary World Politics, International Organisations, p.53.

Sources: Contemporary World Politics, International Organisations, p.53; Contemporary World Politics, International Organisations, p.54; Contemporary World Politics, International Organisations, p.55

7. Article 23: Tenure and Election Rules (exam-level)

To understand the functioning of the United Nations Security Council (UNSC), we must look at Article 23 of the UN Charter, which defines its composition and the rules for its members. The Council is divided into two distinct tiers: the five permanent members (P5)—the US, Russia, UK, France, and China—and ten non-permanent members. While the P5 enjoy 'permanency' and the 'veto power' to maintain global stability Contemporary World Politics, Textbook in political science for Class XII (NCERT 2025 ed.), Chapter 4: International Organisations, p. 54, the non-permanent members are governed by strict rules of tenure and rotation to ensure the Council remains representative of the wider UN membership.

The ten non-permanent members are not chosen by the Council itself, but are elected by the UN General Assembly. Their service is defined by three critical rules:

• Term Length: Each non-permanent member is elected for a fixed term of two years.
• No Immediate Re-election: To prevent any single nation from dominating a non-permanent seat and to allow other countries a fair chance, a retiring member cannot be re-elected immediately after their term expires Contemporary World Politics, Textbook in political science for Class XII (NCERT 2025 ed.), Chapter 4: International Organisations, p. 54. They must wait at least one year before they can stand for election again.
• Staggered Elections: Every year, the General Assembly elects five new members. This 'staggering' ensures that at any given time, five members have one year of experience, while five are fresh arrivals, maintaining institutional continuity.

This system of rotation is designed to balance the need for democratic participation with the reality of geopolitical power. While the P5 provide the 'anchor' of the Council, the shifting non-permanent members bring diverse regional perspectives to the table, reflecting the principle of sovereign equality.

Feature	Permanent Members (P5)	Non-Permanent Members (E10)
Tenure	Indefinite / Permanent	Fixed 2-year term
Election	Named in the UN Charter	Elected by General Assembly
Re-election	Not applicable	Immediate re-election prohibited

Sources: Contemporary World Politics, Textbook in political science for Class XII (NCERT 2025 ed.), Chapter 4: International Organisations, p.54

8. Solving the Original PYQ (exam-level)

You have just explored how the United Nations maintains global peace through its primary organs, and this question tests your mastery of the Security Council’s composition. The core concept here is the balance between the veto-wielding Permanent Five (P5) and the rotating non-permanent members. This structure reflects the principle of geographical representation and ensures that while the P5 provide stability, the broader membership of the General Assembly has a voice in international security decisions.

To arrive at the correct answer, focus on the institutional design of the Council. The UN Charter mandates that the ten non-permanent members are elected for a 2 years term. A crucial detail to remember is the staggered election system: five members are elected every year so that the Council always retains five "experienced" non-permanent members. Since the UN Charter, as noted in Contemporary World Politics (NCERT), explicitly forbids immediate re-election, this 2-year term ensures a regular rotation of power among different nations.

UPSC often uses other common UN timeframes as traps. For instance, 3 years is a common distractor because it is the term length for the Economic and Social Council (ECOSOC), while 5 years is the typical term for the Secretary-General. A 1-year term would be too short for a nation to master the complexities of global security resolutions. By eliminating these institutional overlaps and recalling Chapter 5 of the UN Charter, we confirm that (B) 2 years is the only correct duration for these specific seats.