The constitutional body that superintends, directs and controls elections to Parliament, the State legislatures, and the offices of President and Vice-President.
Article 324, the multi-member structure, and the CEC removal procedure are high-frequency facts; CAPF personnel are deployed for election security, giving it a direct security link.
The ECI (national and State legislatures, Art 324) is distinct from the State Election Commissions (local bodies, Art 243K and 243ZA); the CEC and the other Commissioners have different removal protections.
Art 324 multi-member body (CEC plus two Commissioners) running national and State-legislature elections; local-body polls go to State Election Commissions.