Stone columns or granular piles are designed for the purpose of improving bearing strength of ground. Although they are successful against compressive loads, they have limitations with tensile and uplift forces. A little modification in normal granular pile can tackle this issue. A granular pile with anchoring arrangement can provide resistance against uplift and tensile forces. It is designed with an anchor plate at the base connected to anchor rod which runs through the length of the pile. With the advancement of stone column, the granular anchor pile (GAP) foundation provide resistance to uplift forces as well as compressive forces acting on the foundation of the structures. In expansive soil, heaving is the leading cause of the upliftment of the structure, which causes damage to the foundation structure. In the current study, heave is monitored with time for unreinforced expansive soil in the laboratory experimental test. Further the heave is analyzed numerically using PLAXIS software for both the cases unreinforced and GAP reinforced soil. It was found that the results obtained from numerical analysis was in agreement with the experimental test for unreinforced expansive soil. The GAP was modelled for L/D ratio 8, 10, 12 and 14. It has been observed that there is an effective control in heave when swelling soil is reinforced with GAP. The reduction in heave is increased when L/D ratio increases from 8 to 14. The highest reduction in heave has been observed for the L/D ratio 14 i.e., 15.39 mm.