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We promote the idea of multi-component Dark Matter (DM) to explain resultsfrom both direct and indirect detection experiments. In these models ascontribution of each DM candidate to relic abundance is summed up to meetWMAP/Planck measurements of $\Omega_{\rm DM}$, these candidates have largerannihilation cross-sections compared to the single-component DM models. Thisresults in larger $\gamma$-ray flux in indirect detection experiments of DM. Weillustrate this fact by introducing an extra scalar to the popular single realscalar DM model. We also present detailed calculations for the vacuum stabilitybounds, perturbative unitarity and triviality constraints on this model. Asdirect detection experimental results still show some conflict, we kept ouroptions open, discussing different scenarios with different DM mass zones. Inthe framework of our model we make an interesting observation: The existingdirect detection experiments like CDMS II, CoGeNT, CRESST II, XENON 100 or LUXtogether with the observation of excess low energy $\gamma$-ray from GalacticCentre and Fermi Bubble by FGST already have the capability to distinguishbetween different DM halo profiles.

A Possible Explanation of Low Energy $\gamma$-ray Excess from Galactic Centre and Fermi Bubble by a Dark Matter Model with Two Real Scalars