Hey Mr. Junaid, I agree with Ankita Gandhi on this.
When it comes to Sale of Assets in Block of Assets Concept, there can be 2 possible situations:
1. If all assets in block are sold (No asset exists as at end of Financial year)
In this case, the block ceases to exist and No depreciation is computed. The computation of Capital Gain/Loss (Short Term or Long Term) is made.
2. If some assets remain in the Block (Some asset exists as at end of Financial Year)
In such a scenario, the Depreciation is computed on the Remaining value as at end of Financial year [Opening + Purchase - Sales]. Here no Capital Gain/Loss is computed.
In your case, some assets still exist in the block [Cars] and hence the depreciation is computed on such value.
No Capital Gain/Loss is required to be computed.
Depreciation may be computed as Rs. 9,72,240*15%*50% (since new car put-to-use for less than 180 days) = Rs. 72,918
[Above computation is on assumption that the cars are not being run-on-hire.]
Hope this helps