Depreciation as per companies act, 2013

Can anyone please tell me how to provide depreciation in the following situation for FY: 2015-16 and 2016-17

1. Asset purchased (5 laptops , Rs.60,000 each) on 08.09.2015

2. How can I depreciate the asset under WDV method ?

3. What will be the rate of depreciation in FY: 2015-16 and FY: 2016-17?

4. Useful Life (5 years), Salvage value (Rs. 15,000) , On which date the asset will reach at its salvage value?

Thanks in advance

HARI MUNDAYUR