Further, the amount of TNT has been varied to observe the response. A comparative result of the deformation caused by the different amount of TNT explosive has been shown in Figure 3. As reported earlier, the decrease in deformation has been observed with an increase in the depth of overburden. Furthermore, sharp decrease in deformation has been observed for the case of 5m to 7.5m increase in depth of overburden. While up to 30kg of TNT, the deformations reported were significant and sharp increase has been observed. Furthermore, it has been observed that from 40kg to 60kg of TNT explosive deformations noted were in proximity. The deformation contour of the rock tunnel under varying mass of TNT, has been plotted in Figure 4. It has been observed that for increase in the amount of TNT explosive the zone of deformation along the tunnel alignment has increased linearly. Moreover, for small amount of TNT explosive, the deformation was concentrated in small zone in the internal surface of tunnel. While as the amount of TNT in the tunnel increases the more amount of deformations have been transferred to the surface which has resulted in the heaving of surface instead of settlement.