The core shell configuration together with the inducing species may be providing the necessary energetics for the charge transfer. It has been claimed in a recent communication that at the interface the metallic species absorbs photons to undergo Plasmon excitations and 20 these energized charges are responsible for effective transfer to the substrate at the contact site. It is possible that the interface sites are appropriate for photo catalytic behaviour for charge transfer including hydrogen evolution from water splitting by PEC. As stated earlier, it is possible that in this core shell configuration one may have alternate charge transfer routes in addition to possibly increasing the life time of the exciton which may be responsible for the observed changes in photo-catalytic or PEC applications. The charge transfer routes can be from rutile to anatase or to the trap states in anatase with or without the involvement of the phase transferring agent.