Twisted bilayer transition metal dichalcogenides is a structurally tunable system where one can create a quasiperiodic moiré structure by adjusting stacking angle between the layers. More interestingly, the van der Waals interaction between the two layers allow atomic scale relaxation without rearrangement of chemical bonding that leads to commensurate domains and discommensurate domain boundaries. Here, we demonstrate that the domain topology and its internal symmetry element can be engineered by adjusting the stacking angle. We performed the electron microscopy based analysis to study the microstructural details that are modified by the relaxation and their effect on the electronic band structures.