Sonic travel time well logging of exploration boreholes is acquired to derive a reliable equation to interpret the roof rock strength (uniaxial compressive strength) above the coal seams. Because sonic velocity logs are relatively inexpensive and easy to obtain during exploration, the technique can provide us with an abundance of strength data and can be used to predict the underground strata control design. However, the technique depends on reliable correlations between the uniaxial compressive strength (UCS) and the sonic travel time response of the same lithounit. The development of a correlation between the physico-mechanical properties (UCS) of lithounit’s from three boreholes and their response in relation to sonic travel time is described in this work. The study is conducted for Jamadoba colliery in Jharia Coalfield, where sonic travel time logs were compared with uniaxial compressive strength for a broad range of rock types. The relationship between UCS and sonic travel time for the entire set of data indicates that sonic travel time decreases as rock strength increases. The R2 value for this equation is 0.81 out of 152 samples, indicating a strong correlation between sonic travel time and laboratory tested UCS data. The objective of this study is to predict the strength of the roof rock above the coal seam prior to mining so that necessary safety precautions can be taken during excavation.