Varied Forms of Government in South Asia: A Comparative Study

South Asia is one of the most politically diverse regions on the planet. Eight neighbouring countries, bound by overlapping cultures and a shared colonial past, have ended up with strikingly different ways of organising power. Some hand the real authority to a Prime Minister answerable to an elected legislature. Others place it firmly with a directly elected President. One still keeps a king at the centre of the constitutional arrangement. Understanding these variations is essential to grasping how the region actually governs itself, and it reveals how each nation has reshaped inherited institutions to fit its own history and society.

What “form of government” actually means 🔗

Before comparing countries, it helps to clarify the term. A “form of government” refers to how executive and legislative powers are arranged and how the two relate to each other. Three distinctions matter most for South Asia.

The first is parliamentary versus presidential. In a parliamentary system, the executive (the Prime Minister and cabinet) is drawn from the legislature and stays in office only as long as it commands a majority there. In a presidential system, a directly elected President leads the executive independently of the legislature. A semi-presidential system blends both, pairing an elected President with a Prime Minister accountable to parliament.

The second distinction is unicameral versus bicameral. A unicameral legislature has a single chamber. A bicameral one has two, usually a directly elected lower house and an upper house representing regions or providing review.

The third is federal versus unitary. Federal systems divide power between a central government and constituent provinces or states, while unitary systems concentrate authority at the centre. According to a survey of the region’s legislatures, five South Asian states run parliamentary governments while two operate presidential or semi-presidential systems, making the region a natural laboratory for comparing these models.

The parliamentary heartland: India, Pakistan and Bangladesh 🔗

The largest South Asian states inherited the Westminster parliamentary model from British rule. Notably, almost every founding leader in the region committed to the parliamentary system rather than the presidential alternative when independence arrived, a choice that has largely endured despite repeated stress, as one analysis of the region’s parliamentary traditions observes.

India: parliamentary and federal 🔗

India runs a parliamentary system with a bicameral Parliament. The lower house, the Lok Sabha, is directly elected and is where governments are made and unmade. The upper house, the Rajya Sabha, represents the states. The President is the head of state but acts largely on the advice of the Council of Ministers led by the Prime Minister, who holds genuine executive power. India is also a federal republic, distributing authority between the Union and the states. This combination of a parliamentary executive, a two-chamber legislature and a federal structure makes India the most institutionally elaborate democracy in the region.

Pakistan: parliament under pressure 🔗

Pakistan shares the same basic architecture. It has a bicameral Parliament consisting of the National Assembly and the Senate, with a Prime Minister as head of government and a President as head of state. It is a federal republic with provinces holding significant identity and authority. Yet Pakistan’s path has diverged sharply from India’s because of recurring military intervention. The country has experienced multiple periods of direct military rule, and scholars note that even during civilian phases the armed forces retain outsized influence over security and foreign policy. Interestingly, Pakistan’s founder Jinnah privately doubted the parliamentary model and felt a presidential form might suit the country better, according to a historical account cited in the study of South Asian parliamentary systems. The tension between civilian and military authority remains the defining feature of Pakistani governance.

Bangladesh: parliamentary but unicameral 🔗

Bangladesh departs from its larger neighbours on one key point. It runs a parliamentary system but with a unicameral legislature, the Jatiya Sangsad, rather than two chambers. As one comparative overview notes, Bangladesh is also a unitary republic rather than a federal one, concentrating power at the centre. The Prime Minister leads the executive, while the President performs a mostly ceremonial role. The single-chamber, unitary design reflects the country’s relatively compact and less internally divided territory compared to India or Pakistan.

The Himalayan republics: Nepal’s federal experiment 🔗

Nepal offers one of the most dramatic constitutional transformations in modern South Asia. For centuries a Hindu monarchy, the country abolished its throne and reinvented itself as a federal democratic republic.

From monarchy to federal republic 🔗

The turning point was the Constitution promulgated in 2015, which declared Nepal a federal state with three levels of government: federal, provincial and local, distributing power across seven newly created provinces. This federal turn was a deliberate attempt to decentralise authority away from Kathmandu and accommodate the country’s ethnic and regional diversity.

A bicameral federal parliament 🔗

Nepal’s Federal Parliament is bicameral. The lower house, the House of Representatives, has 275 members elected through a mixed system that combines first-past-the-post with proportional representation. The upper house, the National Assembly, is a permanent body of 59 members, with eight elected from each of the seven provinces by an electoral college and three appointed by the President, as the official parliamentary documentation explains. The constitution also mandates strong inclusion measures, including reserved representation for women. Nepal therefore combines a parliamentary executive with both a federal structure and a two-chamber legislature, a markedly different design from the unitary, unicameral model of neighbouring Bangladesh.

The island states: Sri Lanka and the Maldives 🔗

The two island nations of South Asia broke most decisively from the parliamentary template, placing directly elected Presidents at the heart of their systems.

Sri Lanka: a contested semi-presidential model 🔗

Sri Lanka adopted an executive presidency under its 1978 Constitution, creating a semi-presidential system in which a directly elected President serves as both head of state and head of government, alongside a Prime Minister and a unicameral Parliament of 225 members. The balance between President and Parliament has been the central battleground of Sri Lankan politics ever since, and it has shifted repeatedly through constitutional amendments.

The 19th Amendment of 2015 trimmed presidential power and strengthened both the Prime Minister and Parliament, moving the system toward what one constitutional scholar describes as a premier-presidential model of semi-presidentialism. That rebalancing proved short-lived. The 20th Amendment of 2020 restored sweeping powers to the President and reduced the Prime Minister to a largely ceremonial figure, according to an analysis of the amendment’s impact on the office. After the economic collapse and mass protests of 2022, reform pressure returned, and the 21st Amendment again sought to make the President and cabinet more accountable to Parliament, as documented in coverage of the evolving presidency. This back-and-forth makes Sri Lanka the clearest example in the region of a system still searching for the right distribution of executive power.

The Maldives: a pure presidential system 🔗

The Maldives runs a straightforward presidential system. The President is directly elected by the people and serves as both head of state and head of government, holding significant executive authority. The legislature, the People’s Majlis, is a single elected chamber, and the country is a unitary state. As the regional legislative survey records, the Maldives and Sri Lanka are the two South Asian governments built around presidential or semi-presidential executives accountable to elected legislatures, and both are unitary in structure.

Bhutan: monarchy meets parliament 🔗

Bhutan presents perhaps the most unusual arrangement of all. It is a constitutional monarchy with a parliamentary democracy, a system created not by revolution but by the monarchy itself.

A top-down transition to democracy 🔗

The Wangchuck dynasty deliberately guided the country away from absolute rule. The transition culminated when, as the United States Congressional Research Service records, the adoption of the 2008 constitution made Bhutan a constitutional monarchy with a parliamentary government. To prepare a population with no prior experience of voting, the government even held mock elections before the real ones. The King remains head of state but operates within constitutional limits, and can be required to retire at 65 or be removed by a supermajority vote in the legislature.

A bicameral parliament with royal involvement 🔗

Bhutan’s Parliament is bicameral. The lower house, the National Assembly, has 47 directly elected members, while the upper house, the National Council, has 25 members, of whom five are appointed by the King and the rest elected, as the Congressional profile of the kingdom details. The Prime Minister, drawn from the majority in the National Assembly, leads the executive. Bhutan has now held regular, internationally observed elections in 2008, 2013, 2018 and 2024, and the international NGO Freedom House rates the country as “free,” reflecting steady democratic consolidation. The system uniquely fuses a hereditary monarchy with competitive electoral politics, all framed by the country’s distinctive philosophy of Gross National Happiness.

Why so much variation? The colonial and historical thread 🔗

The diversity is not random. Most of these systems trace back to a shared colonial inheritance combined with very different local adaptations. India, Pakistan and Bangladesh absorbed the Westminster model directly from British rule, which is why parliamentary government dominates the populous mainland. Yet each then reshaped it: India built an elaborate federal democracy, Bangladesh chose a unitary single chamber, and Pakistan’s system was repeatedly interrupted by military intervention.

The states that never experienced the same form of direct British parliamentary tutelage, or that consciously rejected it, moved in other directions. Sri Lanka layered an executive presidency onto a parliamentary base. The Maldives opted for a fully presidential model. Nepal and Bhutan, both former Himalayan monarchies, transformed their royal systems on their own terms, Nepal by abolishing the throne and embracing federalism, Bhutan by preserving the crown within a constitutional framework. The result is a region where a common starting point produced an extraordinary range of outcomes, each one a response to local geography, ethnic composition and political struggle.

The bigger picture 🔗

South Asia demonstrates that there is no single “correct” way to organise democratic government. Within a few thousand kilometres you can find parliamentary federations, unitary single-chamber systems, semi-presidential and presidential republics, and a constitutional monarchy, all coexisting as neighbours. The region is in fact home to over a billion people living under constitutional democratic systems, the largest such population of any region in the world, according to the comparative survey of South Asian legislatures. These institutions continue to evolve, as Sri Lanka’s amendment battles and Nepal’s federal experiment show. Studying them side by side reveals not just how power is arranged on paper, but how history, society and political contest shape the machinery of the state.

What do you think? Does a parliamentary system or a presidential one offer better protection against the concentration of power, judging from South Asia’s experience? And do you think federalism, as adopted by India and Nepal, is better suited to managing diversity than the unitary models of Bangladesh and the Maldives?

References

1. https://en.wikipedia.org/wiki/List_of_legislatures_in_South_Asia
2. https://criterion-quarterly.com/the-parliamentary-system-in-south-asia/
3. https://www.aljazeera.com/news/2017/12/7/nepal-elections-explained
4. https://na.parliament.gov.np/uploads/attachments/gochy1tj5vmblyvf.pdf
5. https://constitutionnet.org/news/return-sri-lankas-imperial-presidency-twentieth-amendment-constitution-bill
6. https://thedialectics.org/understanding-political-structures-sri-lankas-semi-presidential-system-and-its-constitutional-crisis/
7. https://en.m.wikipedia.org/wiki/President_of_Sri_Lanka
8. https://www.congress.gov/crs-product/IF10660