I have used NC(normal close) port as other side of relay is connected with two-way switch. if also usefull in case of failure of ESP32 module. When bulb is on, voltage is coming via power supply module pin in ESP32 module after disconnecting power supply there is no voltage on +ve of relay module.

I have attached, diagram and code as well for further analysis and support. I will appropriate your support in this regards

I have circuit connectivity for 220v status check. 220v is connected to relay module Com Pin. then this 220v is applied to power supply module AC pins, now this power supply convert 220v to 3.3v. I have connected 3.3v supply pin to ESP32 Pin25. This pin will show power level high when there is bulb ...