The Constitution permits States to have either a unicameral or bicameral Legislature.
A State has only:
Legislative Assembly (Vidhan Sabha)
A State has:
Legislative Assembly (Vidhan Sabha) + Legislative Council (Vidhan Parishad)
The constitutional basis is primarily found in:
Article 168
A unicameral State Legislature has only one House:
Legislative Assembly
Structure:
Governor
+
Legislative Assembly
The Legislative Assembly is directly elected by the people.
It performs the major functions of:
Law-making
Financial control
Executive accountability
Representation
2. Bicameral Legislature
A bicameral State Legislature has two Houses:
Legislative Assembly
Legislative Council
Structure:
Governor
+
┌─────────┴─────────┐
↓ ↓
Legislative Assembly Legislative Council
Vidhan Sabha Vidhan Parishad
The Assembly is the lower House.
The Council is the upper House.
3. Constitutional Basis
Important Articles include:
Article 168 → Constitution of State Legislature
Article 169 → Creation or abolition of Legislative Council
Article 170 → Composition of Legislative Assembly
Article 171 → Composition of Legislative Council
Article 172 → Duration of State Legislature
Article 173 → Qualifications for membership
4. Optional Nature of Bicameralism
Unlike Parliament, where the Rajya Sabha is constitutionally established, a Legislative Council is:
Optional at the State level
Therefore:
Legislative Assembly → Essential component
Legislative Council → Optional component
A State can function with only a Legislative Assembly.
5. Creation of Legislative Council
Article 169
A Legislative Council can be created if the State Legislative Assembly passes a resolution.
The resolution requires:
Majority of the total membership of the Assembly
Majority of not less than two-thirds of members present and voting
Both conditions must be satisfied.
After this, Parliament may enact a law to create the Legislative Council.
Therefore:
Assembly Resolution → Parliament's Law → Council Created
6. Abolition of Legislative Council
The same process applies to abolition.
The State Legislative Assembly first passes the required resolution.
Parliament may then pass a law abolishing the Council.
Therefore:
Article 169 → Creation or Abolition
7. Important Constitutional Point
The State Assembly does not itself create or abolish the Council.
It only passes the required resolution.
The final law is made by:
Parliament
This makes Article 169 different from an ordinary State legislative decision.
8. Legislative Assembly in Both Systems
The Legislative Assembly exists in:
Both unicameral and bicameral States
It is:
Directly elected
The principal representative House
The more powerful House in financial matters
The House to which the Council of Ministers is collectively responsible
Therefore:
Bicameralism does not reduce the constitutional importance of the Assembly.
9. Legislative Council in Bicameral States
The Legislative Council exists only where a State has adopted the bicameral structure through the constitutional process.
It is:
Permanent
Indirectly elected and partly nominated
A revising chamber
Less powerful than the Assembly in financial matters
10. Key Differences
Feature Unicameral Bicameral
Number of Houses One Two
Houses Assembly Assembly + Council
Lower House Assembly Assembly
Upper House None Council
Direct election Assembly Assembly
Second chamber No Yes
Legislative review Single House Two-stage legislative scrutiny
Financial dominance Assembly Assembly
Executive responsibility Assembly Assembly
Institutional continuity Assembly subject to dissolution Council provides continuity
11. Advantages of Unicameralism
Simpler Structure
Only one House is involved in the legislative process.
Faster Law-Making
Bills generally face fewer procedural stages.
Lower Expenditure
There is no separate Legislative Council to maintain.
Clear Accountability
The directly elected Assembly is the primary legislative institution.
Reduced Duplication
There is less possibility of two Houses performing overlapping functions.
12. Disadvantages of Unicameralism
Less Legislative Review
There is no second chamber to reconsider legislation.
Possibility of Hasty Legislation
Bills may pass more quickly without an additional revising chamber.
Limited Representation
Certain groups represented through Council constituencies do not have a separate institutional platform.
Less Continuity
The Assembly can be dissolved, whereas a Legislative Council provides permanent institutional continuity.
13. Advantages of Bicameralism
Legislative Review
The Council provides a second level of scrutiny.
Deliberation
Bills receive additional discussion and examination.
Representation
The Council provides representation to:
Local authorities
Graduates
Teachers
Experts
Continuity
The Council is a permanent House.
Expertise
Governor-nominated members can bring specialised knowledge and experience.
14. Disadvantages of Bicameralism
Additional Expenditure
Maintaining a second House increases public expenditure.
Legislative Delay
The Council can delay ordinary legislation within constitutionally prescribed limits.
Political Accommodation
Critics argue that Councils can sometimes become a means of accommodating political leaders who have not been elected to the Assembly.
Limited Direct Legitimacy
Most Council members are not directly elected by the entire electorate.
Possible Duplication
The Council may duplicate legislative functions without significantly improving legislative quality.
15. Assembly Dominance in Bicameralism
Even in a bicameral State, the Legislative Assembly remains constitutionally dominant.
This is especially evident in:
Money Bills
The Council cannot originate a Money Bill.
Demands for Grants
The Council cannot vote on Demands for Grants.
Council of Ministers
The Council of Ministers is collectively responsible to the:
Legislative Assembly
Ordinary Bills
The Council can delay but cannot permanently block an ordinary Bill passed by the Assembly.
16. Ordinary Bills — Council's Role
An ordinary Bill may originate in either House in a bicameral State.
The Legislative Council can:
Pass the Bill
Reject the Bill
Suggest amendments
Delay the Bill
However, it does not possess an absolute veto.
Its role is primarily:
Revising + Deliberative
17. Money Bills — Council's Role
A Money Bill:
Cannot originate in the Legislative Council.
It can originate only in the:
Legislative Assembly
The Council can make recommendations but cannot reject the Assembly's financial decision in the same manner as an equal House.
The Council must return a Money Bill within:
14 days
If it does not return the Bill within that period, it is deemed to have been passed in the form passed by the Assembly.
18. Permanent Nature of Council
The Legislative Council is not dissolved.
Instead:
One-third of its members retire every two years.
Each member normally has a:
Six-year term
Therefore:
Council = Permanent
Members = Six-year term
This provides institutional continuity in bicameral States.
19. Comparison with Parliament
The State bicameral system resembles Parliament's bicameral structure:
Union
↓
Lok Sabha + Rajya Sabha
State
↓
Legislative Assembly + Legislative Council
But the State Legislative Council is different from Rajya Sabha in important constitutional respects.
For example:
State Council → Can be created or abolished
Rajya Sabha → Permanent constitutional chamber of Parliament
20. Democratic vs Deliberative Representation
The debate between unicameralism and bicameralism can be understood as:
Direct Democracy vs Deliberative Review
Unicameralism
Emphasises:
Direct electoral mandate + efficiency
Bicameralism
Emphasises:
Direct representation + legislative review + continuity
Neither model is automatically superior.
Its effectiveness depends on:
Quality of legislative functioning
21. UPSC Prelims Facts
Article 168 provides for State Legislatures.
A State may have one or two Houses.
Legislative Assembly exists in every State.
Legislative Council is optional.
Article 169 deals with creation or abolition of Legislative Councils.
Parliament creates or abolishes the Council through law.
State Assembly must first pass the required resolution.
Legislative Assembly is directly elected.
Legislative Council is indirectly elected and partly nominated.
Legislative Council is a permanent House.
One-third of Council members retire every two years.
Council members normally have a six-year term.
Assembly has greater financial powers.
Money Bills cannot originate in the Council.
Council cannot vote on Demands for Grants.
Council of Ministers is collectively responsible to the Assembly.
Legislative Council cannot permanently block an ordinary Bill.
22. UPSC Prelims Traps
Trap 1
"Every State has a bicameral Legislature."
False
A State may have only a Legislative Assembly.
Trap 2
"Every State can create a Legislative Council by ordinary State law."
False
Article 169 provides a special constitutional process involving the State Assembly and Parliament.
Trap 3
"Legislative Assembly itself creates the Council."
False
Parliament creates the Council through law after the Assembly passes the required resolution.
Trap 4
"Legislative Council is more powerful because it is the Upper House."
False
The Assembly is more powerful in important financial and executive matters.
Trap 5
"Legislative Council can permanently reject an ordinary Bill."
False
It can delay but does not have an absolute veto.
Trap 6
"Legislative Council is dissolved along with the Assembly."
False
The Council is a permanent House.
Trap 7
"Money Bill can originate in either House."
False
It can originate only in the Legislative Assembly.
23. Mains Perspective
The choice between unicameral and bicameral State Legislatures reflects a constitutional balance between:
Efficiency
and:
Deliberation
Unicameralism can provide faster decision-making, lower costs and clearer accountability.
Bicameralism can provide:
Additional legislative scrutiny
Institutional continuity
Wider representation
Expert participation
However, a Legislative Council is valuable only when it performs a genuine deliberative role rather than becoming a platform for political accommodation.
24. Reform Perspective
The quality of bicameralism can be improved through:
Stronger Legislative Committees
Enable detailed scrutiny of Bills.
Transparent Nominations
Ensure Governor-nominated members meet constitutional standards.
Better Legislative Research
Provide members with independent research support.
More Deliberation
Use the Council for substantive policy review rather than routine obstruction.
Reduced Political Patronage
Maintain institutional credibility and public confidence.
25. Quick Revision
STATE LEGISLATURE
↓
Article 168
↓
┌─────┴─────┐
↓ ↓
Unicameral Bicameral
↓ ↓
Assembly Assembly + Council
Assembly
↓
Direct Election
↓
Financial Dominance
↓
Executive Accountability
Council
↓
Optional
↓
Permanent
↓
Indirect + Nominated
↓
Revising Chamber
26. Final Takeaway
The constitutional choice is:
Unicameral → Simplicity + Efficiency
Bicameral → Review + Representation + Continuity
The Legislative Assembly remains the dominant democratic chamber in both systems.
The Legislative Council, where present, is intended to complement the Assembly through:
Deliberation + Revision + Institutional Experience
Therefore, the success of bicameralism ultimately depends not merely on having two Houses, but on whether the second House improves the quality, accountability and deliberative character of State legislation.