What is the quorum to constitute a meeting of Lok Sabha?

The correct answer is B. Under Article 100(3) of the Constitution, the quorum for a meeting of either House of Parliament is one-tenth of the total number of members of that House. For Lok Sabha, with 545 members, that is 55 members. If attendance falls below this, the presiding officer must adjourn the House or suspend the sitting until the quorum is restored.

Why the others fail: A (one-sixth), C (one-fourth) and D (one-third) do not match any constitutional provision on quorum for Parliament. Also keep quorum separate from the majority needed to pass a bill, which is a majority of members present and voting under Article 100(1).

Core concept: quorum is a minimum attendance requirement that protects the legitimacy of decisions taken in the House. It links to GS-II on parliamentary functioning, and to Mains debates on disruptions and the falling sitting days of Parliament.

Trap: aspirants mix up quorum with the voting majority, or pick a fraction that looks familiar from another rule. Tie Article 100(3) firmly to one-tenth.