Fixed Assets Depr Rate

Dear Sir/Ma'am,

My query is one of my client has installed a Private Network Tower at his Head office and branch office for smoother network connectivity. Warranty for the tower is 25 years by the installer, but warranty for the Network devices attached to the tower is 1 year only.

So my question is whether the Tower is considered at 40% Depreciation Rate as Computer related capital goods or some other Rate.