Booth Level Officer (BLO)

Introduction: A Booth Level Officer is a grassroots election functionary responsible for supporting electoral-roll preparation, verification and voter-related services within an assigned polling-part area.

Key pointers

  • Institution: Election Commission of India (ECI).

  • Administrative setting: Works under the election machinery of the relevant state or Union Territory.

  • Electoral-roll duties: Assists in identifying eligible electors, verifying voter information and supporting updates to electoral rolls.

  • Field verification: May conduct household visits and verify details as assigned under election procedures.

  • Voter assistance: Helps citizens understand enrolment and correction procedures.

  • Electoral registration: Supports the Electoral Registration Officer (ERO) and other designated election officials.

  • Importance: Helps improve the accuracy and inclusiveness of electoral rolls.

Important distinctions

Official

Main role

Booth Level Officer (BLO)

Field-level electoral-roll assistance and verification

Electoral Registration Officer (ERO)

Statutory responsibility for electoral-roll preparation and revision

Presiding Officer

Conducts polling at an assigned polling station

Chief Electoral Officer (CEO)

Oversees election-related administration at the state/UT level

UPSC focus: A BLO is not the same as a Presiding Officer. BLOs primarily support electoral-roll-related work, while Presiding Officers manage polling-station proceedings on election day.