Dear Sandeep, the criteria for claiming depreciation is ownership. But courts have held that the right to exclude any other person from using the asset is sufficient for claiming depreciation.
Now again, it is sufficient that the asset is ready to put to use... but the asset is ready to put to use only when it is registered... cos under the Motor Vehicles act, u cant drive (use) vehicles unless they are registered... my conclusion is that the right to exclude others becomes yours only when it is registered, not when invoice is raised (why cant u return the car before it is registered??), and the asset is ready for passive use only once it is registered with the RTO....
So u can claim the depreciation only in the year of registration.