A motion to adjourn the ordinary business of the House to discuss a definite matter of urgent public importance, carrying an element of censure of the government.
The 50-member threshold, the Lok-Sabha-only feature, and the censure element distinguish it from other motions in objective polity questions.
The adjournment motion (censure, Lok Sabha only, 50 members) differs from a concept no confidence motion (tests the government's majority) and from a calling-attention motion (no censure). The Rajya Sabha cannot move it.
Lok-Sabha-only motion needing 50 members to discuss an urgent matter; carries censure of the government.