By-Election
An election held to fill a single seat vacated mid-term.
Short answer
What is By-Election?
A by-election, or bypoll, is held to fill a seat that has become vacant between general elections — through death, resignation or disqualification of the sitting member. It is contested under the same rules as a general election but for a single constituency.
Definition
A by-election, or bypoll, is held to fill a seat that has become vacant between general elections — through death, resignation or disqualification of the sitting member. It is contested under the same rules as a general election but for a single constituency.
Why It Matters
By-elections concentrate resources and media attention on one seat, which distorts normal campaign dynamics. Turnout patterns differ, the ruling party typically enjoys an administrative advantage, and the symbolic weight assigned to the result usually exceeds its arithmetic significance.
Example in Indian Elections
A by-election engagement often begins only two to three weeks before polling, requiring a compressed diagnostic that prioritises booth modelling and opponent assessment over deep field survey work.
Related Terms
- Polling BoothThe individual polling station where a defined group of voters casts their votes.
- Form 20The statutory ECI document publishing booth-wise vote counts after a poll.
- Electoral RollThe official list of registered voters for a constituency, organised by part and booth.
- NOTA"None of the Above" — an option on the ballot to reject all candidates.
- Model Code of ConductECI guidelines governing party and candidate conduct once an election is announced.
- Silence PeriodThe 48 hours before polling closes when public campaigning is prohibited.