Friction stir welding of Titanium and Nickel-based alloys are challenging because of the extreme tool wear and inadequate quality of the weld. Different secondary sources of energies have already been used by the previous researchers to assist the traditional FSW process. NiTinol, equiatomic Ni–Ti shape memory alloy with shape memory effect and pseudoelasticity, is widely utilized in the fields of aerospace, automotive, civil-structural and hydrospace application. To multiply the usage of the alloy, it necessitates the assembly of the alloy to further intricate shape, size and structure. Generation of intricate shape of NiTinol is complex and expensive as the alloy has low machinability and formability property. The solid-state welding process is gaining interest because it can impart better mechanical properties. In this current work, a comparison of conventional friction stir welding (FSW) and induction heating assisted FSW (IFSW) of NiTinol in lap joint configuration would be done using 1 mm thick NiTinol sheet. A cylindrical tool made of WC-10% Co with taper pin was used. The experimentations were carried at tool rotational speed of 450 rpm. The welding speed was fixed at 40 mm/min for conventional FSW and at 70 mm/min for IFSW. The preheating temperature was fixed at 400 ℃. Refined grain structures for both the cases were observed. As a result of this, mechanical properties were enhanced. The microhardness value of the stir zone was increased considerably from that of the parent material. The tensile properties were enhanced in comparison with fusion welding of NiTinol.