Open-pit mining accounts for nearly 90% of the total available mines in India for various minerals. The depth of the open-pit mine in India ranges from few metres to as deep as 400 m. As the depth of open-pit mine increases, slope stability becomes a significant concern due to time-dependent deformations that heighten the risk of failure if slopes are inadequately designed. Slope failure and land subsidence can adversely affect the safety of men & machineries including environment and economics of the mine. An effective slope monitoring system is necessary to manage the geotechnical risks associated with open-pit mining that produces critical information and facilitates in understanding the slope behaviour with time. The slope monitoring practice helps mine operators in managing and mitigating the risks of a slope failure by forecasting the event of failure before it occurs. For better identification of potential slope hazards, it is better to have some early warnings of an impending slope failure by setting out alarming and threshold limits for the moving slope. This study examines the current slope monitoring methods and techniques used in open-pit mines across India.