Effective Rate of Duty on specified computer components updated, with nil and specified rates and project-linked exemption conditions. Effective Rate of Duty on goods classifiable under Chapters 83-93 is amended by substituting S. No. 17 to list specified computer and storage devices and to differentiate combo drives meant for internal fitment (nil-rated) from those for other uses (subject to a specified duty rate). The Annexure's condition No. 28 is replaced to make excise exemption conditional on prior customs duty exemption at import, certification by a Joint Secretary-level officer in the Ministry of Power for project use, and an undertaking by the project CEO to use the goods only in the project and to pay duty if that undertaking is breached.