The anti-defection mechanism mainly comes from the Tenth Schedule added by the 52nd Constitutional Amendment Act, 1985.
Under the Tenth Schedule, the authority to decide disqualification is the Presiding Officer of the House.
| House | Member Type | Deciding Authority |
|---|---|---|
| Lok Sabha | MP | Speaker of Lok Sabha |
| Rajya Sabha | MP | Chairman of Rajya Sabha (Vice-President) |
| State Legislative Assembly | MLA | Speaker of Assembly |
| State Legislative Council | MLC | Chairman of Legislative Council |
The Tenth Schedule clearly states that questions regarding disqualification on grounds of defection are decided by the Speaker/Chairman of the concerned House.
When the disqualification is NOT related to defection, then Articles 103 and 192 apply.
| Member | Type of Disqualification | Decision Taken By | Opinion Taken From |
|---|---|---|---|
| MP | Article 102 disqualification | President of India | Election Commission of India |
| MLA / MLC | Article 191 disqualification | Governor | Election Commission of India |
Examples:
In such cases:
The Election Commission has NO direct decision-making power in anti-defection matters.Decision is made by:
NOT by ECI.
ECI gives advisory opinion to:
And that opinion is binding in practice.
Then:
Originally:
But in Kihoto Hollohan v. Zachillhu, Supreme Court held:
Thus judicial review is allowed.