Rate Of Depreciation As Per Income Tax Act On Stone Crusher

We have depreciation on crusher plant company,jul 05 2012 what will be the rate of depreciation as per income tax act on crushing machine crusher which is used for converting the rocks into gitti pls help income tax tax queries depreciation on crusher machine as per it act follow 3 replies start a discussion jai chawla plant machinery chargable depreciation 15 as per income tax act.