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Modified Newtonian Dynamics (MOND) and its relativistic version - TeVeS offerus an alternative perspective to understand the universe without the demand ofthe elusive cold dark matter. This MONDian paradigm is not only competitivewith the conventional CDM in a large range of scales, but also even moresuccessful in the galactic scale. Recently, by studying 6 lensing systems,Ferreras et al. (2008) claimed that MOND still needs dark matter even ingalactic scales. When we study the same systems, however, we yield an oppositeconclusion. In this contribution, we report our result and conclude that MONDdoes not need dark matter in galactic lensing systems. Furthermore, we extendour study to 22 SLACS (Sloan Lens ACS Survey) lenses, and obtain the sameconclusion as well, i.e., no dark matter is needed in elliptical galaxies.

Necessity of Dark Matter in Modified Newtonian Dynamics within Galactic Scales? - Testing the Covariant MOND in Elliptical Lenses