Capital gain on sale of motor car

Few client got notice u/s 139(9) for the same matter that, Deducted capital gain from PGBP income as Other Expempt income / Cpital gain. And in other head (Other expempt income / Capital gain) the income of sale of car not shown ; Because its not covered under that head.

But in both cases notice issued.

what i can do while filling rectification.

Pls Suggest me.