Step 1: Define an interlocutory order.
An interlocutory order is a judicial order passed during the course of legal proceedings, before the final judgment is delivered by the court.
Step 2: Clarify the scope.
Such orders can be passed in both civil and criminal cases and by courts at any level, not just subordinate courts. They address interim or procedural matters that require urgent resolution while the main case is still pending before the court.
Step 3: Identify the correct definition.
The defining feature is that it is issued during the pendency of a case, making option (1) correct.
\[ \boxed{\text{during the pendency of a court case}} \]