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We investigate the effect of a crystal edge dislocation on the metallicsurface of a Topological Insulator. The edge dislocation gives rise to torsionwhich the electrons experience as a spin connection. As a result the electronspropagate along confined two dimensional regions and circular contours. Due tothe edge dislocations the parity symmetry is violated resulting in a currentmeasured by the in-plane component of the spin on the surface.  The tunneling density of states for Burger vectors in the $y$ direction ismaximal along the $x$ direction. The evidence of the enhanced tunneling densityof states can be verified with the help of the scanning tunneling technique.

The two dimensional local density of states of a Topological Insulator with an edge dislocation