Detailed Concept Breakdown
8 concepts, approximately 16 minutes to master.
1. Organization of State Legislatures (basic)
When we look at how our states are governed, the first thing to understand is that the Organization of State Legislatures is not uniform across India. While our national Parliament is always bicameral (meaning it has two houses), the Constitution allows each state the flexibility to decide its own structure. Most states in India follow a unicameral system, where the legislature consists of the Governor and just one house: the Legislative Assembly (also known as the Vidhan Sabha). However, a few states opted for a bicameral system, which adds a second house called the Legislative Council (Vidhan Parishad) Laxmikanth, M. Indian Polity, State Legislature, p.334.
Currently, only six states have this two-house system: Andhra Pradesh, Telangana, Uttar Pradesh, Bihar, Maharashtra, and Karnataka. In these states, the legislature is a trio composed of the Governor, the Legislative Council, and the Legislative Assembly NCERT, Indian Constitution at Work, LEGISLATURE, p.102. The remaining twenty-two states operate with a unicameral system, focusing all legislative power in the Assembly.
| System Type |
Components |
Current Status |
| Unicameral |
Governor + Legislative Assembly |
22 States |
| Bicameral |
Governor + Legislative Assembly + Legislative Council |
6 States |
Under Article 170, the Legislative Assembly is the primary body where members are chosen via direct election from territorial constituencies. To ensure that the size of these assemblies remains balanced—large enough to represent the people but small enough to remain efficient—the Constitution sets specific boundaries. The maximum strength of a Legislative Assembly is fixed at 500 members, while the minimum strength is generally set at 60 members Laxmikanth, M. Indian Polity, Parliament, p.223. It is important to note that for very small states like Goa, Sikkim, and Mizoram, the minimum limit is lower to accommodate their small populations.
Key Takeaway Most Indian states have a unicameral legislature (Governor + Assembly), but 6 states are bicameral. The Legislative Assembly's strength must generally range between 60 and 500 members.
Sources:
Indian Polity, M. Laxmikanth, Chapter 33: State Legislature, p.334; Indian Constitution at Work, NCERT, Chapter 5: Legislature, p.102; Indian Polity, M. Laxmikanth, Chapter 23: Parliament, p.223
2. Duration of State Houses (basic)
When we look at how long a State Legislature stays in power, we see a clear distinction between the two houses. The State Legislative Assembly (Vidhan Sabha) is the 'popular house,' meaning it is directly elected by the people. Because it represents the immediate will of the voters, its life is transitionary. Under normal circumstances, the duration of the Assembly is five years from the date of its first meeting after general elections. Once this period ends, the Assembly is automatically dissolved Introduction to the Constitution of India, The State Legislature, p.282.
However, this five-year term is not set in stone. The Governor has the authority to dissolve the Assembly at any time even before the five-year term is completed. This usually happens if the government loses its majority or if the Chief Minister recommends dissolution. Furthermore, the term can be extended during a National Emergency. In such cases, the Parliament (not the State Legislature itself) can pass a law to extend the Assembly's life by one year at a time for any length of time. However, this extension must end within six months after the emergency has been lifted Indian Polity, State Legislature, p.334.
In contrast, the Legislative Council (Vidhan Parishad), which exists in only a few states, is a permanent body. It is never dissolved entirely. Instead, it follows a cycle of continuity: its members serve for six years, and one-third of the members retire every second year Indian Polity, State Legislature, p.334. This ensures that the house always has experienced members present, acting as a check and balance to the more volatile Assembly.
| Feature |
Legislative Assembly (Vidhan Sabha) |
Legislative Council (Vidhan Parishad) |
| Nature |
Temporary (subject to dissolution) |
Permanent (not subject to dissolution) |
| Normal Term |
5 years |
Permanent body (Members serve 6 years) |
| Retirement Cycle |
All members retire at dissolution |
1/3rd members retire every 2nd year |
Key Takeaway The Vidhan Sabha has a fixed 5-year term but can be dissolved early by the Governor or extended by Parliament during a National Emergency, whereas the Vidhan Parishad is a permanent house that never dissolves.
Sources:
Introduction to the Constitution of India, The State Legislature, p.282; Indian Polity, State Legislature, p.334
3. Creation and Abolition of Legislative Councils (intermediate)
In the Indian federal structure, while every state must have a Legislative Assembly (Vidhan Sabha), the existence of a Legislative Council (Vidhan Parishad) is optional. This chamber acts as a 'House of Elders,' intended to provide a sober second thought to legislation passed by the popular house. However, because it can be seen as an expensive or delaying institution, the Constitution provides a unique mechanism for its creation and abolition under Article 169 Indian Polity, M. Laxmikanth(7th ed.), State Legislature, p.334.
The process is a two-step dance between the State and the Centre. First, the State Legislative Assembly must pass a resolution requesting the creation or abolition. This resolution requires a special majority: a majority of the total membership of the assembly and a majority of not less than two-thirds of the members present and voting. Once this resolution is received, the Parliament can then enact a law to give effect to the request. Interestingly, while the State requires a special majority, the Parliament passes this act with a simple majority, just like ordinary legislation.
Key Takeaway The power to create or abolish a Legislative Council ultimately rests with the Parliament, but it can only act if the concerned State Legislative Assembly initiates the process via a special majority resolution.
One of the most critical legal nuances here is that any law passed by Parliament for this purpose is not deemed to be an amendment of the Constitution for the purposes of Article 368. This means it doesn't require the rigorous 368-procedure, making the process relatively flexible. States have historically used this flexibility; for instance, West Bengal abolished its council in 1969, while Andhra Pradesh has seen a cycle of abolition (1985) and re-creation (2005) Indian Polity, M. Laxmikanth(7th ed.), State Legislature, p.352.
| Feature |
State Assembly Resolution |
Parliamentary Act |
| Majority Required |
Special Majority (2/3rd present & voting + absolute majority) |
Simple Majority |
| Nature of Law |
Initiating Resolution |
Ordinary Law (Not an Art. 368 Amendment) |
Sources:
Indian Polity, M. Laxmikanth(7th ed.), State Legislature, p.334; Indian Polity, M. Laxmikanth(7th ed.), State Legislature, p.352
4. Qualifications and Disqualifications of Members (intermediate)
To understand who can sit in the State Legislative Assembly, we look at Article 173 of the Constitution. Think of this as a two-tier filter: first, the Constitutional requirements, and second, the statutory requirements added by Parliament. To be qualified, a person must be a citizen of India and make an oath or affirmation before a person authorized by the Election Commission. Most importantly, there is an age floor: you must be at least 25 years of age for the Legislative Assembly, whereas the Legislative Council (if present) requires a minimum of 30 years Introduction to the Constitution of India, D. D. Basu (26th ed.), The State Legislature, p. 283.
Beyond these basics, the Constitution gives Parliament the power to prescribe additional qualifications. This was done through the Representation of the People Act (RPA), 1951. For instance, a candidate must be an elector for an assembly constituency in that particular state. Interestingly, if a person wants to contest a seat reserved for Scheduled Castes or Scheduled Tribes, they must be a member of those categories in any state/UT, though they can contest a general seat as well Indian Polity, M. Laxmikanth (7th ed.), State Legislature, p. 337.
Disqualifications (Article 191) are the "exit gates." A member can be removed if they hold an office of profit, are of unsound mind, are an undischarged insolvent, or lose their Indian citizenship. The RPA 1951 adds further triggers, such as being convicted of an offense resulting in imprisonment for two or more years, or failing to lodge election expenses on time. A vital distinction exists in who makes the final call on these issues:
| Ground for Disqualification |
Deciding Authority |
Required Advice |
| Constitutional/RPA Grounds (e.g., Office of Profit) |
Governor |
Must obtain and follow the Election Commission's opinion |
| Defection (Tenth Schedule) |
Speaker / Chairman |
None (Subject to Judicial Review) |
The Tenth Schedule (Anti-Defection Law) is a unique layer. If a member voluntarily gives up their party membership or votes against party directions, the Speaker decides their fate. While the Speaker's word was once considered final, the Supreme Court in the Kihoto Hollohan case (1992) clarified that such decisions are subject to judicial review to prevent any arbitrary use of power Indian Polity, M. Laxmikanth (7th ed.), State Legislature, p. 338.
Key Takeaway Qualifications and disqualifications for State Legislatures are defined by both the Constitution (fundamental criteria) and the RPA 1951 (detailed conduct), with the Governor and Speaker acting as the respective deciding authorities depending on the nature of the violation.
Sources:
Introduction to the Constitution of India, D. D. Basu (26th ed.), The State Legislature, p.283; Indian Polity, M. Laxmikanth (7th ed.), State Legislature, p.337-338
5. The Anti-Defection Law (10th Schedule) (intermediate)
The Anti-Defection Law, enshrined in the Tenth Schedule of the Constitution, was introduced by the 52nd Amendment Act in 1985 to curb the frequent floor-crossing by legislators, often mockingly referred to as the 'Aaya Ram, Gaya Ram' culture. In the context of the State Legislative Assembly, this law ensures political stability by penalizing members (MLAs) who shift their party allegiance for personal or political gain. Unlike other disqualifications (like holding an office of profit), where the Governor decides after consulting the Election Commission, the power to disqualify a member on the grounds of defection rests solely with the Presiding Officer of the House—the Speaker for the Assembly and the Chairman for the Council Laxmikanth, M. Indian Polity. 7th ed., McGraw Hill. | State Legislature | p.338.
There are four primary grounds under which an MLA or MLC can be disqualified under the Tenth Schedule:
- Voluntary Resignation: If a member voluntarily gives up the membership of the political party on whose ticket they were elected.
- Violation of Whip: If a member votes or abstains from voting in the House contrary to the directions issued by their political party without prior permission, and such act is not condoned by the party within 15 days.
- Independent Members: If an elected independent member joins any political party after the election.
- Nominated Members: If a nominated member joins any political party after the expiry of six months from the date on which they take their seat.
A crucial legal turning point for this law was the Kihoto Hollohan case (1992). Originally, the law stated that the Speaker's decision was final and could not be challenged in court. However, the Supreme Court ruled that while the Speaker acts as a tribunal when deciding these cases, their decision is subject to judicial review on grounds of mala fides (bad faith) or perversity Laxmikanth, M. Indian Polity. 7th ed., McGraw Hill. | State Legislature | p.338. This ensures that the Presiding Officer's power is not used arbitrarily to favor the ruling party.
| Feature |
General Disqualification (Art. 191) |
Defection Disqualification (10th Schedule) |
| Deciding Authority |
Governor |
Speaker / Chairman |
| Consultation Required |
Election Commission of India (Advice is binding) |
No mandatory consultation |
| Judicial Review |
Applicable |
Applicable (since Kihoto Hollohan case) |
Key Takeaway The Speaker of the State Legislative Assembly has the exclusive power to disqualify members for defection, but this power is not absolute and is subject to the scrutiny of the High Courts and Supreme Court.
Sources:
Laxmikanth, M. Indian Polity, State Legislature, p.338
6. Composition of the Legislative Assembly (Article 170) (exam-level)
The Legislative Assembly (also known as the Vidhan Sabha) is the popular house of the state legislature, representing the voice of the people at the state level. Under Article 170 of the Constitution, the composition of this House is built on the principle of direct democracy. Unlike the Rajya Sabha or State Legislative Councils, members of the Assembly are chosen through direct elections based on universal adult franchise. This means every citizen aged 18 or above has the right to vote for their representative in territorial constituencies Indian Polity, State Legislature, p.335.
To maintain a balance between effective governance and fair representation, the Constitution provides specific numerical boundaries for the strength of these assemblies. While the size of an assembly generally depends on the state's population, it must adhere to the following limits:
| Feature |
Constitutional Provision |
| Maximum Strength |
500 members |
| Minimum Strength (General) |
60 members |
| Exceptions (Lower Minimums) |
Arunachal Pradesh, Sikkim, Goa (30); Mizoram (40); Nagaland (46) |
These exceptions were created to accommodate smaller states with lower populations, ensuring they still have a functional legislative body despite not meeting the general 60-member floor Indian Polity, State Legislature, p.335. Furthermore, each state is divided into territorial constituencies in such a way that the ratio between the population of each constituency and the number of seats allotted to it is, as far as practicable, the same throughout the state Indian Polity, State Legislature, p.335.
An important recent update for your exams: previously, the Governor could nominate one member from the Anglo-Indian community if they were underrepresented. However, the 104th Amendment Act, 2019, discontinued this provision starting in 2020. Today, the Assembly consists entirely of elected members Indian Polity, State Legislature, p.335.
Key Takeaway Article 170 mandates that State Legislative Assemblies have a maximum of 500 and a general minimum of 60 members, all elected directly by the people.
Remember 500 is the ceiling for states (50 less than the Lok Sabha's 550), and the "small sisters" (Arunachal, Sikkim, Goa) can go as low as 30.
Sources:
Indian Polity, State Legislature, p.335; Indian Constitution at Work, LEGISLATURE, p.106
7. Exceptions to Minimum Strength Requirements (exam-level)
To understand the composition of a
State Legislative Assembly (Vidhan Sabha), we must look at
Article 170 of the Constitution. Generally, the Constitution seeks a balance between effective representation and administrative manageability. To achieve this, it mandates that the strength of an Assembly should vary based on population, specifically staying within the range of a
maximum of 500 members and a
minimum of 60 members Indian Polity, M. Laxmikanth(7th ed.), State Legislature, p. 335.
However, India is a land of vast demographic diversity. For smaller states with low population densities, a strict minimum of 60 members would result in disproportionately small constituencies or an unnecessarily large governing body for the area. Consequently, the Constitution and various Acts of Parliament have carved out specific exceptions to the minimum strength. These exceptions ensure that even the smallest states have a functional democratic assembly that reflects their unique geographic and demographic realities.
| State |
Prescribed Minimum Strength |
| Arunachal Pradesh |
30 |
| Sikkim |
30 |
| Goa |
30 |
| Mizoram |
40 |
| Nagaland |
46 |
It is important to distinguish these figures from the Legislative Council (Vidhan Parishad), where the minimum strength is fixed at 40 and the maximum cannot exceed one-third of the total strength of the respective Assembly Indian Polity, M. Laxmikanth(7th ed.), State Legislature, p. 336. Additionally, while the Governor previously had the power to nominate one member from the Anglo-Indian community if they were underrepresented, this provision was discontinued by the 104th Constitutional Amendment Act, 2019, which took effect in January 2020 Indian Polity, M. Laxmikanth(7th ed.), State Legislature, p. 335.
Key Takeaway While the standard minimum strength for a State Legislative Assembly is 60, five states (Arunachal Pradesh, Sikkim, Goa, Mizoram, and Nagaland) have lower constitutionally/legally sanctioned minimums to accommodate their smaller populations.
Sources:
Indian Polity, M. Laxmikanth(7th ed.), State Legislature, p.335; Indian Polity, M. Laxmikanth(7th ed.), State Legislature, p.336
8. Solving the Original PYQ (exam-level)
Now that you have mastered the structural framework of the State Legislature, this question tests your ability to recall specific constitutional thresholds. Under Article 170 of the Constitution, the State Legislative Assembly (Vidhan Sabha) is designed to be a representative body chosen by direct election. The building blocks you just learned regarding territorial constituencies and proportional representation culminate in this specific legal limit: the Constitution mandates that no State Assembly can have more than 500 members, ensuring the house remains a manageable deliberative body even in highly populated states like Uttar Pradesh.
To arrive at the correct answer, (C) 500, you must distinguish between the compositions of different legislative bodies. While you might recall that smaller states like Goa or Mizoram have special exceptions for a minimum number of seats (falling below the standard floor of 60), the maximum ceiling is a rigid constitutional cap. As noted in Indian Polity, M. Laxmikanth, this upper limit is a fundamental fact often paired with the composition of the Union Parliament to test a candidate's precision.
UPSC often uses "distractor" numbers to trip up students who have a vague rather than precise memory. Option (D) 550 is a classic trap; it represents the maximum strength of the Lok Sabha (the lower house of Parliament), not the State Assembly. Options (A) 400 and (B) 450 are arbitrary figures that might seem plausible given the size of some large states, but they have no constitutional basis. Success in these questions comes from internalizing the distinction between State and Central limits—remembering that the state ceiling is exactly 50 members fewer than the federal ceiling.