The focus on coal production from underground mines is steadily increasing due to the rapid depletion of easily accessible surface deposits and steady increase in the demand of coal. Ventilating deep, extensive, and highly mechanized underground coal mines is currently a critical area of concern. The underground mining environment is dynamic which changes with slight variations in in-situ geological condition, engineering parameters and other bio-chemical parameters. Therefore, mining operations require a flexible and responsive ventilation system to adapt to these dynamic conditions. Technologies such as Ventilation-on-Demand (VOD) enable real-time adjustments, optimizing energy consumption by reducing unnecessary ventilation during periods of lower activity or in specific areas where less airflow is needed. In underground mines where heat stress is prevalent and mine air refrigeration is required, VOD plays a crucial role in delivering cool air precisely on where and when need basis for efficiently managing both ventilation and refrigeration costs. This study presents an investigation on the application of VOD to reduce heat stress and decrease the operational costs associated with fan power consumption, thereby promoting sustainability. The findings suggest that deploying advanced VOD systems can enhance safety, efficiency and productivity by mitigating heat stress, while potentially cutting operational electricity costs in underground coal mines.