@theelectricalgyan: This diagram illustrates a two-way staircase lighting circuit, allowing the same lights to be controlled from multiple locations like different floors. Key components include a miniature circuit breaker (MCB) for power supply and two-way switches connected by traveler wires. The phase (live) wire connects to the switches, while the neutral wire connects directly to the light fixtures. Terminal labels such as L (Common), L1, and L2 are typically used to identify the connection points on the switches.