The present disclosure provides a system (100) for automatic detection anddisplay of water availability in public restroom. The system (100) includes oneor more first sensors (102), coupled to the one or more flush tanks installed inthe one or more restroom cubicles. The one or more first sensors are configuredto detect water level in the one or more flush tanks. Upon detection of opening10 of doors of the one or more restroom cubicles by one or more second sensors(104), a processing unit (108), communicatively coupled to the one or more first(102) and second (104) sensors is configured to determine water availabilitystatus of the one or more flush tanks. Correspondingly a first set of outputsignals, enabled to indicate water availability in the one or more flush tanks is15 generated by the processing unit and transmitted to one or more display units(106).